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[client] use cmake to generate renderers/fonts/clipboards headers/code

Browse Source 
This is in preperation of cmake options to enable/disable various
functionallity.
This commit is contained in:
Geoffrey McRae
2019-03-28 19:56:14 +11:00
parent b524c077a4
commit 3e021f3a6b
52 changed files with 176 additions and 168 deletions
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56
client/renderers/EGL/CMakeLists.txt Normal file
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cmake_minimum_required(VERSION 3.0)
project(renderer_EGL LANGUAGES C)
find_package(PkgConfig)
pkg_check_modules(RENDERER_EGL_PKGCONFIG REQUIRED
egl
wayland-egl
gl
)
include(MakeObject)
make_object(
EGL_SHADER
shader/desktop.vert
shader/desktop_rgb.frag
shader/desktop_yuv.frag
shader/cursor.vert
shader/cursor_rgb.frag
shader/cursor_mono.frag
shader/fps.vert
shader/fps.frag
shader/fps_bg.frag
shader/alert.vert
shader/alert.frag
shader/alert_bg.frag
shader/splash_bg.vert
shader/splash_bg.frag
shader/splash_logo.vert
shader/splash_logo.frag
)
add_library(renderer_EGL STATIC
egl.c
shader.c
texture.c
model.c
desktop.c
cursor.c
fps.c
draw.c
splash.c
alert.c
${EGL_SHADER_OBJS}
)
target_link_libraries(renderer_EGL
${RENDERER_EGL_PKGCONFIG_LIBRARIES}
fonts
)
target_include_directories(renderer_EGL
PRIVATE
src
${EGL_SHADER_INCS}
${RENDERER_EGL_PKGCONFIG_INCLUDE_DIRS}
)

212
client/renderers/EGL/alert.c Normal file
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
cahe terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "alert.h"
#include "debug.h"
#include "utils.h"
#include "texture.h"
#include "shader.h"
#include "model.h"
#include <stdlib.h>
#include <string.h>
// these headers are auto generated by cmake
#include "alert.vert.h"
#include "alert.frag.h"
#include "alert_bg.frag.h"
struct EGL_Alert
{
const LG_Font * font;
LG_FontObj fontObj;
EGL_Texture * texture;
EGL_Shader * shader;
EGL_Shader * shaderBG;
EGL_Model * model;
LG_Lock lock;
bool update;
LG_FontBitmap * bmp;
bool ready;
float width, height;
float r, g, b, a;
// uniforms
GLint uScreen , uSize;
GLint uScreenBG, uSizeBG, uColorBG;
};
bool egl_alert_init(EGL_Alert ** alert, const LG_Font * font, LG_FontObj fontObj)
{
*alert = (EGL_Alert *)malloc(sizeof(EGL_Alert));
if (!*alert)
{
DEBUG_ERROR("Failed to malloc EGL_Alert");
return false;
}
memset(*alert, 0, sizeof(EGL_Alert));
(*alert)->font = font;
(*alert)->fontObj = fontObj;
LG_LOCK_INIT((*alert)->lock);
if (!egl_texture_init(&(*alert)->texture))
{
DEBUG_ERROR("Failed to initialize the alert texture");
return false;
}
if (!egl_shader_init(&(*alert)->shader))
{
DEBUG_ERROR("Failed to initialize the alert shader");
return false;
}
if (!egl_shader_init(&(*alert)->shaderBG))
{
DEBUG_ERROR("Failed to initialize the alert bg shader");
return false;
}
if (!egl_shader_compile((*alert)->shader,
b_shader_alert_vert, b_shader_alert_vert_size,
b_shader_alert_frag, b_shader_alert_frag_size))
{
DEBUG_ERROR("Failed to compile the alert shader");
return false;
}
if (!egl_shader_compile((*alert)->shaderBG,
b_shader_alert_vert , b_shader_alert_vert_size,
b_shader_alert_bg_frag, b_shader_alert_bg_frag_size))
{
DEBUG_ERROR("Failed to compile the alert shader");
return false;
}
(*alert)->uSize = egl_shader_get_uniform_location((*alert)->shader , "size" );
(*alert)->uScreen = egl_shader_get_uniform_location((*alert)->shader , "screen");
(*alert)->uSizeBG = egl_shader_get_uniform_location((*alert)->shaderBG, "size" );
(*alert)->uScreenBG = egl_shader_get_uniform_location((*alert)->shaderBG, "screen");
(*alert)->uColorBG = egl_shader_get_uniform_location((*alert)->shaderBG, "color" );
if (!egl_model_init(&(*alert)->model))
{
DEBUG_ERROR("Failed to initialize the alert model");
return false;
}
egl_model_set_default((*alert)->model);
egl_model_set_texture((*alert)->model, (*alert)->texture);
return true;
}
void egl_alert_free(EGL_Alert ** alert)
{
if (!*alert)
return;
egl_texture_free(&(*alert)->texture );
egl_shader_free (&(*alert)->shader );
egl_shader_free (&(*alert)->shaderBG);
egl_model_free (&(*alert)->model );
free(*alert);
*alert = NULL;
}
void egl_alert_set_color(EGL_Alert * alert, const uint32_t color)
{
alert->r = (1.0f / 0xff) * ((color >> 24) & 0xFF);
alert->g = (1.0f / 0xff) * ((color >> 16) & 0xFF);
alert->b = (1.0f / 0xff) * ((color >> 8) & 0xFF);
alert->a = (1.0f / 0xff) * ((color >> 0) & 0xFF);
}
void egl_alert_set_text (EGL_Alert * alert, const char * str)
{
LG_LOCK(alert->lock);
alert->bmp = alert->font->render(alert->fontObj, 0xffffff00, str);
if (!alert->bmp)
{
alert->update = false;
LG_UNLOCK(alert->lock);
DEBUG_ERROR("Failed to render alert text");
return;
}
alert->update = true;
LG_UNLOCK(alert->lock);
}
void egl_alert_render(EGL_Alert * alert, const float scaleX, const float scaleY)
{
if (alert->update)
{
LG_LOCK(alert->lock);
egl_texture_setup(
alert->texture,
EGL_PF_BGRA,
alert->bmp->width ,
alert->bmp->height,
alert->bmp->width * alert->bmp->bpp,
false
);
egl_texture_update(alert->texture, alert->bmp->pixels);
alert->width = alert->bmp->width;
alert->height = alert->bmp->height;
alert->ready = true;
alert->font->release(alert->fontObj, alert->bmp);
alert->update = false;
alert->bmp = NULL;
LG_UNLOCK(alert->lock);
}
if (!alert->ready)
return;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// render the background first
egl_shader_use(alert->shaderBG);
glUniform2f(alert->uScreenBG, scaleX , scaleY );
glUniform2f(alert->uSizeBG , alert->width, alert->height);
glUniform4f(alert->uColorBG , alert->r, alert->g, alert->b, alert->a);
egl_model_render(alert->model);
// render the texture over the background
egl_shader_use(alert->shader);
glUniform2f(alert->uScreen, scaleX , scaleY );
glUniform2f(alert->uSize , alert->width, alert->height);
egl_model_render(alert->model);
glDisable(GL_BLEND);
}

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client/renderers/EGL/alert.h Normal file
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <stdbool.h>
#include "interface/font.h"
typedef struct EGL_Alert EGL_Alert;
bool egl_alert_init(EGL_Alert ** alert, const LG_Font * font, LG_FontObj fontObj);
void egl_alert_free(EGL_Alert ** alert);
void egl_alert_set_color(EGL_Alert * alert, const uint32_t color);
void egl_alert_set_text (EGL_Alert * alert, const char * str);
void egl_alert_render (EGL_Alert * alert, const float scaleX, const float scaleY);

294
client/renderers/EGL/cursor.c Normal file
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
cahe terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "cursor.h"
#include "debug.h"
#include "utils.h"
#include "texture.h"
#include "shader.h"
#include "model.h"
#include <stdlib.h>
#include <string.h>
// these headers are auto generated by cmake
#include "cursor.vert.h"
#include "cursor_rgb.frag.h"
#include "cursor_mono.frag.h"
struct EGL_Cursor
{
LG_Lock lock;
LG_RendererCursor type;
int width;
int height;
int stride;
uint8_t * data;
size_t dataSize;
bool update;
// cursor state
bool visible;
float x, y, w, h;
// textures
struct EGL_Texture * texture;
struct EGL_Texture * textureMono;
// shaders
struct EGL_Shader * shader;
struct EGL_Shader * shaderMono;
// uniforms
GLuint uMousePos;
GLuint uMousePosMono;
// model
struct EGL_Model * model;
};
bool egl_cursor_init(EGL_Cursor ** cursor)
{
*cursor = (EGL_Cursor *)malloc(sizeof(EGL_Cursor));
if (!*cursor)
{
DEBUG_ERROR("Failed to malloc EGL_Cursor");
return false;
}
memset(*cursor, 0, sizeof(EGL_Cursor));
LG_LOCK_INIT((*cursor)->lock);
if (!egl_texture_init(&(*cursor)->texture))
{
DEBUG_ERROR("Failed to initialize the cursor texture");
return false;
}
if (!egl_texture_init(&(*cursor)->textureMono))
{
DEBUG_ERROR("Failed to initialize the cursor mono texture");
return false;
}
if (!egl_shader_init(&(*cursor)->shader))
{
DEBUG_ERROR("Failed to initialize the cursor shader");
return false;
}
if (!egl_shader_init(&(*cursor)->shaderMono))
{
DEBUG_ERROR("Failed to initialize the cursor mono shader");
return false;
}
if (!egl_shader_compile(
(*cursor)->shader,
b_shader_cursor_vert , b_shader_cursor_vert_size,
b_shader_cursor_rgb_frag, b_shader_cursor_rgb_frag_size))
{
DEBUG_ERROR("Failed to compile the cursor shader");
return false;
}
if (!egl_shader_compile(
(*cursor)->shaderMono,
b_shader_cursor_vert , b_shader_cursor_vert_size,
b_shader_cursor_mono_frag, b_shader_cursor_mono_frag_size))
{
DEBUG_ERROR("Failed to compile the cursor mono shader");
return false;
}
(*cursor)->uMousePos = egl_shader_get_uniform_location((*cursor)->shader , "mouse");
(*cursor)->uMousePosMono = egl_shader_get_uniform_location((*cursor)->shaderMono, "mouse");
if (!egl_model_init(&(*cursor)->model))
{
DEBUG_ERROR("Failed to initialize the cursor model");
return false;
}
egl_model_set_default((*cursor)->model);
return true;
}
void egl_cursor_free(EGL_Cursor ** cursor)
{
if (!*cursor)
return;
LG_LOCK_FREE((*cursor)->lock);
if ((*cursor)->data)
free((*cursor)->data);
egl_texture_free(&(*cursor)->texture );
egl_texture_free(&(*cursor)->textureMono);
egl_shader_free (&(*cursor)->shader );
egl_shader_free (&(*cursor)->shaderMono );
egl_model_free (&(*cursor)->model );
free(*cursor);
*cursor = NULL;
}
bool egl_cursor_set_shape(EGL_Cursor * cursor, const LG_RendererCursor type, const int width, const int height, const int stride, const uint8_t * data)
{
LG_LOCK(cursor->lock);
cursor->type = type;
cursor->width = width;
cursor->height = (type == LG_CURSOR_MONOCHROME ? height / 2 : height);
cursor->stride = stride;
const size_t size = height * stride;
if (size > cursor->dataSize)
{
if (cursor->data)
free(cursor->data);
cursor->data = (uint8_t *)malloc(size);
if (!cursor->data)
{
DEBUG_ERROR("Failed to malloc buffer for cursor shape");
return false;
}
cursor->dataSize = size;
}
memcpy(cursor->data, data, size);
cursor->update = true;
LG_UNLOCK(cursor->lock);
return true;
}
void egl_cursor_set_size(EGL_Cursor * cursor, const float w, const float h)
{
cursor->w = w;
cursor->h = h;
}
void egl_cursor_set_state(EGL_Cursor * cursor, const bool visible, const float x, const float y)
{
cursor->visible = visible;
cursor->x = x;
cursor->y = y;
}
void egl_cursor_render(EGL_Cursor * cursor)
{
if (!cursor->visible)
return;
if (cursor->update)
{
LG_LOCK(cursor->lock);
cursor->update = false;
uint8_t * data = cursor->data;
// tmp buffer for masked colour
uint32_t tmp[cursor->width * cursor->height];
switch(cursor->type)
{
case LG_CURSOR_MASKED_COLOR:
{
for(int i = 0; i < cursor->width * cursor->height; ++i)
{
const uint32_t c = ((uint32_t *)data)[i];
tmp[i] = (c & ~0xFF000000) | (c & 0xFF000000 ? 0x0 : 0xFF000000);
}
data = (uint8_t *)tmp;
// fall through to LG_CURSOR_COLOR
//
// technically we should also create an XOR texture from the data but this
// usage seems very rare in modern software.
}
case LG_CURSOR_COLOR:
{
egl_texture_setup(cursor->texture, EGL_PF_BGRA, cursor->width, cursor->height, cursor->stride, false);
egl_texture_update(cursor->texture, data);
egl_model_set_texture(cursor->model, cursor->texture);
break;
}
case LG_CURSOR_MONOCHROME:
{
uint32_t and[cursor->width * cursor->height];
uint32_t xor[cursor->width * cursor->height];
for(int y = 0; y < cursor->height; ++y)
for(int x = 0; x < cursor->width; ++x)
{
const uint8_t * srcAnd = data + (cursor->stride * y) + (x / 8);
const uint8_t * srcXor = srcAnd + cursor->stride * cursor->height;
const uint8_t mask = 0x80 >> (x % 8);
const uint32_t andMask = (*srcAnd & mask) ? 0xFFFFFFFF : 0xFF000000;
const uint32_t xorMask = (*srcXor & mask) ? 0x00FFFFFF : 0x00000000;
and[y * cursor->width + x] = andMask;
xor[y * cursor->width + x] = xorMask;
}
egl_texture_setup (cursor->texture , EGL_PF_BGRA, cursor->width, cursor->height, cursor->width * 4, false);
egl_texture_setup (cursor->textureMono, EGL_PF_BGRA, cursor->width, cursor->height, cursor->width * 4, false);
egl_texture_update(cursor->texture , (uint8_t *)and);
egl_texture_update(cursor->textureMono, (uint8_t *)xor);
break;
}
}
LG_UNLOCK(cursor->lock);
}
if (cursor->type == LG_CURSOR_MONOCHROME)
{
glEnable(GL_BLEND);
egl_shader_use(cursor->shader);
glUniform4f(cursor->uMousePos, cursor->x, cursor->y, cursor->w, cursor->h / 2);
glBlendFunc(GL_ZERO, GL_SRC_COLOR);
egl_model_set_texture(cursor->model, cursor->texture);
egl_model_render(cursor->model);
egl_shader_use(cursor->shaderMono);
glUniform4f(cursor->uMousePosMono, cursor->x, cursor->y, cursor->w, cursor->h / 2);
glBlendFunc(GL_ONE_MINUS_DST_COLOR, GL_ZERO);
egl_model_set_texture(cursor->model, cursor->textureMono);
egl_model_render(cursor->model);
glDisable(GL_BLEND);
}
else
{
glEnable(GL_BLEND);
egl_shader_use(cursor->shader);
glUniform4f(cursor->uMousePos, cursor->x, cursor->y, cursor->w, cursor->h);
glBlendFunc(GL_ONE,GL_ONE_MINUS_SRC_ALPHA);
egl_model_render(cursor->model);
glDisable(GL_BLEND);
}
}

34
client/renderers/EGL/cursor.h Normal file
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <stdbool.h>
#include "interface/renderer.h"
typedef struct EGL_Cursor EGL_Cursor;
bool egl_cursor_init(EGL_Cursor ** cursor);
void egl_cursor_free(EGL_Cursor ** cursor);
bool egl_cursor_set_shape(EGL_Cursor * cursor, const LG_RendererCursor type, const int width, const int height, const int stride, const uint8_t * data);
void egl_cursor_set_size (EGL_Cursor * cursor, const float x, const float y);
void egl_cursor_set_state(EGL_Cursor * cursor, const bool visible, const float x, const float y);
void egl_cursor_render (EGL_Cursor * cursor);

212
client/renderers/EGL/desktop.c Normal file
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
cahe terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "desktop.h"
#include "debug.h"
#include "utils.h"
#include "texture.h"
#include "shader.h"
#include "model.h"
#include <stdlib.h>
#include <string.h>
// these headers are auto generated by cmake
#include "desktop.vert.h"
#include "desktop_rgb.frag.h"
#include "desktop_yuv.frag.h"
struct EGL_Desktop
{
EGL_Texture * texture;
EGL_Shader * shader; // the active shader
EGL_Model * model;
// shader instances
EGL_Shader * shader_generic;
EGL_Shader * shader_yuv;
// uniforms
GLint uDesktopPos;
// internals
enum EGL_PixelFormat pixFmt;
unsigned int width, height;
unsigned int pitch;
const uint8_t * data;
bool update;
};
bool egl_desktop_init(EGL_Desktop ** desktop)
{
*desktop = (EGL_Desktop *)malloc(sizeof(EGL_Desktop));
if (!*desktop)
{
DEBUG_ERROR("Failed to malloc EGL_Desktop");
return false;
}
memset(*desktop, 0, sizeof(EGL_Desktop));
if (!egl_texture_init(&(*desktop)->texture))
{
DEBUG_ERROR("Failed to initialize the desktop texture");
return false;
}
if (!egl_shader_init(&(*desktop)->shader_generic))
{
DEBUG_ERROR("Failed to initialize the generic desktop shader");
return false;
}
if (!egl_shader_init(&(*desktop)->shader_yuv))
{
DEBUG_ERROR("Failed to initialize the yuv desktop shader");
return false;
}
if (!egl_shader_compile((*desktop)->shader_generic,
b_shader_desktop_vert , b_shader_desktop_vert_size,
b_shader_desktop_rgb_frag, b_shader_desktop_rgb_frag_size))
{
DEBUG_ERROR("Failed to compile the generic desktop shader");
return false;
}
if (!egl_shader_compile((*desktop)->shader_yuv,
b_shader_desktop_vert , b_shader_desktop_vert_size,
b_shader_desktop_yuv_frag, b_shader_desktop_yuv_frag_size))
{
DEBUG_ERROR("Failed to compile the yuv desktop shader");
return false;
}
if (!egl_model_init(&(*desktop)->model))
{
DEBUG_ERROR("Failed to initialize the desktop model");
return false;
}
egl_model_set_default((*desktop)->model);
egl_model_set_texture((*desktop)->model, (*desktop)->texture);
return true;
}
void egl_desktop_free(EGL_Desktop ** desktop)
{
if (!*desktop)
return;
egl_texture_free(&(*desktop)->texture );
egl_shader_free (&(*desktop)->shader_generic);
egl_shader_free (&(*desktop)->shader_yuv );
egl_model_free (&(*desktop)->model );
free(*desktop);
*desktop = NULL;
}
bool egl_desktop_prepare_update(EGL_Desktop * desktop, const bool sourceChanged, const LG_RendererFormat format, const uint8_t * data)
{
if (sourceChanged)
{
switch(format.type)
{
case FRAME_TYPE_BGRA:
desktop->pixFmt = EGL_PF_BGRA;
desktop->shader = desktop->shader_generic;
break;
case FRAME_TYPE_RGBA:
desktop->pixFmt = EGL_PF_RGBA;
desktop->shader = desktop->shader_generic;
break;
case FRAME_TYPE_RGBA10:
desktop->pixFmt = EGL_PF_RGBA10;
desktop->shader = desktop->shader_generic;
break;
case FRAME_TYPE_YUV420:
desktop->pixFmt = EGL_PF_YUV420;
desktop->shader = desktop->shader_yuv;
break;
default:
DEBUG_ERROR("Unsupported frame format");
return false;
}
desktop->width = format.width;
desktop->height = format.height;
desktop->pitch = format.pitch;
}
desktop->data = data;
desktop->update = true;
return true;
}
bool egl_desktop_perform_update(EGL_Desktop * desktop, const bool sourceChanged)
{
if (sourceChanged)
{
if (desktop->shader)
desktop->uDesktopPos = egl_shader_get_uniform_location(desktop->shader, "position");
if (!egl_texture_setup(
desktop->texture,
desktop->pixFmt,
desktop->width,
desktop->height,
desktop->pitch,
true // streaming texture
))
{
DEBUG_ERROR("Failed to setup the desktop texture");
return false;
}
}
if (!desktop->update)
return true;
if (!egl_texture_update(desktop->texture, desktop->data))
{
DEBUG_ERROR("Failed to update the desktop texture");
return false;
}
desktop->update = false;
return true;
}
void egl_desktop_render(EGL_Desktop * desktop, const float x, const float y, const float scaleX, const float scaleY)
{
if (!desktop->shader)
return;
egl_shader_use(desktop->shader);
glUniform4f(desktop->uDesktopPos, x, y, scaleX, scaleY);
egl_model_render(desktop->model);
}

33
client/renderers/EGL/desktop.h Normal file
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <stdbool.h>
#include "interface/renderer.h"
typedef struct EGL_Desktop EGL_Desktop;
bool egl_desktop_init(EGL_Desktop ** desktop);
void egl_desktop_free(EGL_Desktop ** desktop);
bool egl_desktop_prepare_update(EGL_Desktop * desktop, const bool sourceChanged, const LG_RendererFormat format, const uint8_t * data);
bool egl_desktop_perform_update(EGL_Desktop * desktop, const bool sourceChanged);
void egl_desktop_render(EGL_Desktop * desktop, const float x, const float y, const float scaleX, const float scaleY);

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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "draw.h"
#include <stdlib.h>
#include <math.h>
void egl_draw_torus(EGL_Model * model, unsigned int pts, float x, float y, float inner, float outer)
{
GLfloat * v = (GLfloat *)malloc(sizeof(GLfloat) * (pts + 1) * 6);
GLfloat * dst = v;
for(unsigned int i = 0; i <= pts; ++i)
{
const float angle = (i / (float)pts) * M_PI * 2.0f;
const float c = cos(angle);
const float s = sin(angle);
*dst = x + (inner * c); ++dst;
*dst = y + (inner * s); ++dst;
*dst = 0.0f; ++dst;
*dst = x + (outer * c); ++dst;
*dst = y + (outer * s); ++dst;
*dst = 0.0f; ++dst;
}
egl_model_add_verticies(model, v, NULL, (pts + 1) * 2);
free(v);
}
void egl_draw_torus_arc(EGL_Model * model, unsigned int pts, float x, float y, float inner, float outer, float s, float e)
{
GLfloat * v = (GLfloat *)malloc(sizeof(GLfloat) * (pts + 1) * 6);
GLfloat * dst = v;
for(unsigned int i = 0; i <= pts; ++i)
{
const float angle = s + ((i / (float)pts) * e);
const float c = cos(angle);
const float s = sin(angle);
*dst = x + (inner * c); ++dst;
*dst = y + (inner * s); ++dst;
*dst = 0.0f; ++dst;
*dst = x + (outer * c); ++dst;
*dst = y + (outer * s); ++dst;
*dst = 0.0f; ++dst;
}
egl_model_add_verticies(model, v, NULL, (pts + 1) * 2);
free(v);
}

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client/renderers/EGL/draw.h Normal file
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include "model.h"
void egl_draw_torus (EGL_Model * model, unsigned int pts, float x, float y, float inner, float outer);
void egl_draw_torus_arc(EGL_Model * model, unsigned int pts, float x, float y, float inner, float outer, float s, float e);

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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "interface/renderer.h"
#include "debug.h"
#include "utils.h"
#include "dynamic/fonts.h"
#include <SDL2/SDL_syswm.h>
#include <SDL2/SDL_egl.h>
#if defined(SDL_VIDEO_DRIVER_WAYLAND)
#include <wayland-egl.h>
#endif
#include "model.h"
#include "shader.h"
#include "desktop.h"
#include "cursor.h"
#include "fps.h"
#include "splash.h"
#include "alert.h"
#define SPLASH_FADE_TIME 1000000
#define ALERT_TIMEOUT 2000000
struct Options
{
bool vsync;
};
static struct Options defaultOptions =
{
.vsync = false
};
struct Inst
{
LG_RendererParams params;
struct Options opt;
EGLNativeDisplayType nativeDisp;
EGLNativeWindowType nativeWind;
EGLDisplay display;
EGLConfig configs;
EGLSurface surface;
EGLContext context;
EGL_Desktop * desktop; // the desktop
EGL_Cursor * cursor; // the mouse cursor
EGL_FPS * fps; // the fps display
EGL_Splash * splash; // the splash screen
EGL_Alert * alert; // the alert display
LG_RendererFormat format;
bool sourceChanged;
uint64_t waitFadeTime;
bool waitDone;
bool showAlert;
uint64_t alertTimeout;
bool useCloseFlag;
bool closeFlag;
int width, height;
LG_RendererRect destRect;
float translateX , translateY;
float scaleX , scaleY;
float splashRatio;
float screenScaleX, screenScaleY;
float mouseWidth , mouseHeight;
float mouseScaleX, mouseScaleY;
const LG_Font * font;
LG_FontObj fontObj;
};
void update_mouse_shape(struct Inst * this);
const char * egl_get_name()
{
return "EGL";
}
bool egl_create(void ** opaque, const LG_RendererParams params)
{
// create our local storage
*opaque = malloc(sizeof(struct Inst));
if (!*opaque)
{
DEBUG_INFO("Failed to allocate %lu bytes", sizeof(struct Inst));
return false;
}
memset(*opaque, 0, sizeof(struct Inst));
// safe off parameteres and init our default option values
struct Inst * this = (struct Inst *)*opaque;
memcpy(&this->params, &params , sizeof(LG_RendererParams));
memcpy(&this->opt , &defaultOptions, sizeof(struct Options ));
this->translateX = 0;
this->translateY = 0;
this->scaleX = 1.0f;
this->scaleY = 1.0f;
this->screenScaleX = 1.0f;
this->screenScaleY = 1.0f;
this->font = LG_Fonts[0];
if (!this->font->create(&this->fontObj, NULL, 14))
{
DEBUG_ERROR("Failed to create a font instance");
return false;
}
return true;
}
bool egl_initialize(void * opaque, Uint32 * sdlFlags)
{
*sdlFlags = SDL_WINDOW_OPENGL;
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER , 1);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS , 1);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES , 4);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
return true;
}
void egl_deinitialize(void * opaque)
{
struct Inst * this = (struct Inst *)opaque;
if (this->font && this->fontObj)
this->font->destroy(this->fontObj);
egl_desktop_free(&this->desktop);
egl_cursor_free (&this->cursor);
egl_fps_free (&this->fps );
egl_splash_free (&this->splash);
egl_alert_free (&this->alert );
free(this);
}
void egl_on_resize(void * opaque, const int width, const int height, const LG_RendererRect destRect)
{
struct Inst * this = (struct Inst *)opaque;
this->width = width;
this->height = height;
memcpy(&this->destRect, &destRect, sizeof(LG_RendererRect));
glViewport(0, 0, width, height);
if (destRect.valid)
{
this->translateX = 1.0f - (((destRect.w / 2) + destRect.x) * 2) / (float)width;
this->translateY = 1.0f - (((destRect.h / 2) + destRect.y) * 2) / (float)height;
this->scaleX = (float)destRect.w / (float)width;
this->scaleY = (float)destRect.h / (float)height;
}
this->mouseScaleX = 2.0f / this->format.width ;
this->mouseScaleY = 2.0f / this->format.height;
egl_cursor_set_size(this->cursor,
(this->mouseWidth * (1.0f / this->format.width )) * this->scaleX,
(this->mouseHeight * (1.0f / this->format.height)) * this->scaleY
);
this->splashRatio = (float)width / (float)height;
this->screenScaleX = 1.0f / width;
this->screenScaleY = 1.0f / height;
}
bool egl_on_mouse_shape(void * opaque, const LG_RendererCursor cursor, const int width, const int height, const int pitch, const uint8_t * data)
{
struct Inst * this = (struct Inst *)opaque;
if (!egl_cursor_set_shape(this->cursor, cursor, width, height, pitch, data))
{
DEBUG_ERROR("Failed to update the cursor shape");
return false;
}
this->mouseWidth = width;
this->mouseHeight = height;
egl_cursor_set_size(this->cursor,
(this->mouseWidth * (1.0f / this->format.width )) * this->scaleX,
(this->mouseHeight * (1.0f / this->format.height)) * this->scaleY
);
return true;
}
bool egl_on_mouse_event(void * opaque, const bool visible , const int x, const int y)
{
struct Inst * this = (struct Inst *)opaque;
egl_cursor_set_state(
this->cursor,
visible,
(((float)x * this->mouseScaleX) - 1.0f) * this->scaleX,
(((float)y * this->mouseScaleY) - 1.0f) * this->scaleY
);
return true;
}
bool egl_on_frame_event(void * opaque, const LG_RendererFormat format, const uint8_t * data)
{
struct Inst * this = (struct Inst *)opaque;
this->sourceChanged = (
this->sourceChanged ||
this->format.type != format.type ||
this->format.width != format.width ||
this->format.height != format.height ||
this->format.pitch != format.pitch
);
if (this->sourceChanged)
memcpy(&this->format, &format, sizeof(LG_RendererFormat));
if (!egl_desktop_prepare_update(this->desktop, this->sourceChanged, format, data))
{
DEBUG_INFO("Failed to prepare to update the desktop");
return false;
}
if (!this->waitFadeTime)
this->waitFadeTime = microtime() + SPLASH_FADE_TIME;
return true;
}
void egl_on_alert(void * opaque, const LG_RendererAlert alert, const char * message, bool ** closeFlag)
{
struct Inst * this = (struct Inst *)opaque;
static const uint32_t colors[] =
{
0x0000CCCC, // LG_ALERT_INFO
0x00CC00CC, // LG_ALERT_SUCCESS
0xCC7F00CC, // LG_ALERT_WARNING
0xFF0000CC // LG_ALERT_ERROR
};
if (alert > LG_ALERT_ERROR || alert < 0)
{
DEBUG_ERROR("Invalid alert value");
return;
}
egl_alert_set_color(this->alert, colors[alert]);
egl_alert_set_text (this->alert, message );
if (closeFlag)
{
this->useCloseFlag = true;
*closeFlag = &this->closeFlag;
}
else
{
this->useCloseFlag = false;
this->alertTimeout = microtime() + ALERT_TIMEOUT;
}
this->showAlert = true;
}
bool egl_render_startup(void * opaque, SDL_Window * window)
{
struct Inst * this = (struct Inst *)opaque;
SDL_SysWMinfo wminfo;
SDL_VERSION(&wminfo.version);
if (!SDL_GetWindowWMInfo(window, &wminfo))
{
DEBUG_ERROR("SDL_GetWindowWMInfo failed");
return false;
}
switch(wminfo.subsystem)
{
case SDL_SYSWM_X11:
{
this->nativeDisp = (EGLNativeDisplayType)wminfo.info.x11.display;
this->nativeWind = (EGLNativeWindowType)wminfo.info.x11.window;
break;
}
#if defined(SDL_VIDEO_DRIVER_WAYLAND)
case SDL_SYSWM_WAYLAND:
{
int width, height;
SDL_GetWindowSize(window, &width, &height);
this->nativeDisp = (EGLNativeDisplayType)wminfo.info.wl.display;
this->nativeWind = (EGLNativeWindowType)wl_egl_window_create(wminfo.info.wl.surface, width, height);
break;
}
#endif
default:
DEBUG_ERROR("Unsupported subsystem");
return false;
}
this->display = eglGetDisplay(this->nativeDisp);
if (this->display == EGL_NO_DISPLAY)
{
DEBUG_ERROR("eglGetDisplay failed");
return false;
}
if (!eglInitialize(this->display, NULL, NULL))
{
DEBUG_ERROR("Unable to initialize EGL");
return false;
}
EGLint attr[] =
{
EGL_BUFFER_SIZE , 16,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_SAMPLE_BUFFERS , 1,
EGL_SAMPLES , 8,
EGL_NONE
};
EGLint num_config;
if (!eglChooseConfig(this->display, attr, &this->configs, 1, &num_config))
{
DEBUG_ERROR("Failed to choose config (eglError: 0x%x)", eglGetError());
return false;
}
this->surface = eglCreateWindowSurface(this->display, this->configs, this->nativeWind, NULL);
if (this->surface == EGL_NO_SURFACE)
{
DEBUG_ERROR("Failed to create EGL surface (eglError: 0x%x)", eglGetError());
return false;
}
EGLint ctxattr[] =
{
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
this->context = eglCreateContext(this->display, this->configs, EGL_NO_CONTEXT, ctxattr);
if (this->context == EGL_NO_CONTEXT)
{
DEBUG_ERROR("Failed to create EGL context (eglError: 0x%x)", eglGetError());
return false;
}
eglMakeCurrent(this->display, this->surface, this->surface, this->context);
DEBUG_INFO("Vendor : %s", glGetString(GL_VENDOR ));
DEBUG_INFO("Renderer: %s", glGetString(GL_RENDERER));
DEBUG_INFO("Version : %s", glGetString(GL_VERSION ));
eglSwapInterval(this->display, this->opt.vsync ? 1 : 0);
if (!egl_desktop_init(&this->desktop))
{
DEBUG_ERROR("Failed to initialize the desktop");
return false;
}
if (!egl_cursor_init(&this->cursor))
{
DEBUG_ERROR("Failed to initialize the cursor");
return false;
}
if (!egl_fps_init(&this->fps, this->font, this->fontObj))
{
DEBUG_ERROR("Failed to initialize the FPS display");
return false;
}
if (!egl_splash_init(&this->splash))
{
DEBUG_ERROR("Failed to initialize the splash screen");
return false;
}
if (!egl_alert_init(&this->alert, this->font, this->fontObj))
{
DEBUG_ERROR("Failed to initialize the alert display");
return false;
}
return true;
}
bool egl_render(void * opaque, SDL_Window * window)
{
struct Inst * this = (struct Inst *)opaque;
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
egl_desktop_render(this->desktop, this->translateX, this->translateY, this->scaleX, this->scaleY);
egl_cursor_render(this->cursor);
if (!this->waitDone)
{
float a = 1.0f;
if (!this->waitFadeTime)
a = 1.0f;
else
{
uint64_t t = microtime();
if (t > this->waitFadeTime)
this->waitDone = true;
else
{
uint64_t delta = this->waitFadeTime - t;
a = 1.0f / SPLASH_FADE_TIME * delta;
}
}
if (!this->waitDone)
egl_splash_render(this->splash, a, this->splashRatio);
}
if (this->showAlert)
{
bool close = false;
if (this->useCloseFlag)
close = this->closeFlag;
else if (this->alertTimeout < microtime())
close = true;
if (close)
this->showAlert = false;
else
egl_alert_render(this->alert, this->screenScaleX, this->screenScaleY);
}
egl_fps_render(this->fps, this->screenScaleX, this->screenScaleY);
eglSwapBuffers(this->display, this->surface);
// defer texture uploads until after the flip to avoid stalling
if (!egl_desktop_perform_update(this->desktop, this->sourceChanged))
{
DEBUG_ERROR("Failed to perform the desktop update");
return false;
}
this->sourceChanged = false;
return true;
}
void egl_update_fps(void * opaque, const float avgUPS, const float avgFPS)
{
struct Inst * this = (struct Inst *)opaque;
if (!this->params.showFPS)
return;
egl_fps_update(this->fps, avgUPS, avgFPS);
}
static void handle_opt_vsync(void * opaque, const char *value)
{
struct Inst * this = (struct Inst *)opaque;
if (!this)
return;
this->opt.vsync = LG_RendererValueToBool(value);
}
static LG_RendererOpt egl_options[] =
{
{
.name = "vsync",
.desc ="Enable or disable vsync [default: enabled]",
.validator = LG_RendererValidatorBool,
.handler = handle_opt_vsync
}
};
struct LG_Renderer LGR_EGL =
{
.create = egl_create,
.get_name = egl_get_name,
.options = egl_options,
.option_count = LGR_OPTION_COUNT(egl_options),
.initialize = egl_initialize,
.deinitialize = egl_deinitialize,
.on_resize = egl_on_resize,
.on_mouse_shape = egl_on_mouse_shape,
.on_mouse_event = egl_on_mouse_event,
.on_frame_event = egl_on_frame_event,
.on_alert = egl_on_alert,
.render_startup = egl_render_startup,
.render = egl_render,
.update_fps = egl_update_fps
};

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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
cahe terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "fps.h"
#include "debug.h"
#include "utils.h"
#include "texture.h"
#include "shader.h"
#include "model.h"
#include <stdlib.h>
#include <string.h>
// these headers are auto generated by cmake
#include "fps.vert.h"
#include "fps.frag.h"
#include "fps_bg.frag.h"
struct EGL_FPS
{
const LG_Font * font;
LG_FontObj fontObj;
EGL_Texture * texture;
EGL_Shader * shader;
EGL_Shader * shaderBG;
EGL_Model * model;
bool ready;
float width, height;
// uniforms
GLint uScreen , uSize;
GLint uScreenBG, uSizeBG;
};
bool egl_fps_init(EGL_FPS ** fps, const LG_Font * font, LG_FontObj fontObj)
{
*fps = (EGL_FPS *)malloc(sizeof(EGL_FPS));
if (!*fps)
{
DEBUG_ERROR("Failed to malloc EGL_FPS");
return false;
}
memset(*fps, 0, sizeof(EGL_FPS));
(*fps)->font = font;
(*fps)->fontObj = fontObj;
if (!egl_texture_init(&(*fps)->texture))
{
DEBUG_ERROR("Failed to initialize the fps texture");
return false;
}
if (!egl_shader_init(&(*fps)->shader))
{
DEBUG_ERROR("Failed to initialize the fps shader");
return false;
}
if (!egl_shader_init(&(*fps)->shaderBG))
{
DEBUG_ERROR("Failed to initialize the fps bg shader");
return false;
}
if (!egl_shader_compile((*fps)->shader,
b_shader_fps_vert, b_shader_fps_vert_size,
b_shader_fps_frag, b_shader_fps_frag_size))
{
DEBUG_ERROR("Failed to compile the fps shader");
return false;
}
if (!egl_shader_compile((*fps)->shaderBG,
b_shader_fps_vert , b_shader_fps_vert_size,
b_shader_fps_bg_frag, b_shader_fps_bg_frag_size))
{
DEBUG_ERROR("Failed to compile the fps shader");
return false;
}
(*fps)->uSize = egl_shader_get_uniform_location((*fps)->shader , "size" );
(*fps)->uScreen = egl_shader_get_uniform_location((*fps)->shader , "screen");
(*fps)->uSizeBG = egl_shader_get_uniform_location((*fps)->shaderBG, "size" );
(*fps)->uScreenBG = egl_shader_get_uniform_location((*fps)->shaderBG, "screen");
if (!egl_model_init(&(*fps)->model))
{
DEBUG_ERROR("Failed to initialize the fps model");
return false;
}
egl_model_set_default((*fps)->model);
egl_model_set_texture((*fps)->model, (*fps)->texture);
return true;
}
void egl_fps_free(EGL_FPS ** fps)
{
if (!*fps)
return;
egl_texture_free(&(*fps)->texture );
egl_shader_free (&(*fps)->shader );
egl_shader_free (&(*fps)->shaderBG);
egl_model_free (&(*fps)->model );
free(*fps);
*fps = NULL;
}
void egl_fps_update(EGL_FPS * fps, const float avgFPS, const float renderFPS)
{
char str[128];
snprintf(str, sizeof(str), "UPS: %8.4f, FPS: %8.4f", avgFPS, renderFPS);
LG_FontBitmap * bmp = fps->font->render(fps->fontObj, 0xffffff00, str);
if (!bmp)
{
DEBUG_ERROR("Failed to render fps text");
return;
}
egl_texture_setup(
fps->texture,
EGL_PF_BGRA,
bmp->width ,
bmp->height,
bmp->width * bmp->bpp,
false
);
egl_texture_update
(
fps->texture,
bmp->pixels
);
fps->width = bmp->width;
fps->height = bmp->height;
fps->ready = true;
fps->font->release(fps->fontObj, bmp);
}
void egl_fps_render(EGL_FPS * fps, const float scaleX, const float scaleY)
{
if (!fps->ready)
return;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// render the background first
egl_shader_use(fps->shaderBG);
glUniform2f(fps->uScreenBG, scaleX , scaleY );
glUniform2f(fps->uSizeBG , fps->width, fps->height);
egl_model_render(fps->model);
// render the texture over the background
egl_shader_use(fps->shader);
glUniform2f(fps->uScreen, scaleX , scaleY );
glUniform2f(fps->uSize , fps->width, fps->height);
egl_model_render(fps->model);
glDisable(GL_BLEND);
}

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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <stdbool.h>
#include "interface/font.h"
typedef struct EGL_FPS EGL_FPS;
bool egl_fps_init(EGL_FPS ** fps, const LG_Font * font, LG_FontObj fontObj);
void egl_fps_free(EGL_FPS ** fps);
void egl_fps_update(EGL_FPS * fps, const float avgUPS, const float avgFPS);
void egl_fps_render(EGL_FPS * fps, const float scaleX, const float scaleY);

219
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "model.h"
#include "shader.h"
#include "texture.h"
#include "debug.h"
#include "utils.h"
#include "ll.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
#include <SDL2/SDL_egl.h>
struct EGL_Model
{
bool rebuild;
struct ll * verticies;
size_t vertexCount;
bool finish;
bool hasBuffer;
GLuint buffer;
EGL_Shader * shader;
EGL_Texture * texture;
};
struct FloatList
{
GLfloat * v;
GLfloat * u;
size_t count;
};
void update_uniform_bindings(EGL_Model * model);
bool egl_model_init(EGL_Model ** model)
{
*model = (EGL_Model *)malloc(sizeof(EGL_Model));
if (!*model)
{
DEBUG_ERROR("Failed to malloc EGL_Model");
return false;
}
memset(*model, 0, sizeof(EGL_Model));
(*model)->verticies = ll_new();
return true;
}
void egl_model_free(EGL_Model ** model)
{
if (!*model)
return;
struct FloatList * fl;
while(ll_shift((*model)->verticies, (void **)&fl))
{
free(fl->u);
free(fl->v);
free(fl);
}
ll_free((*model)->verticies);
if ((*model)->hasBuffer)
glDeleteBuffers(1, &(*model)->buffer);
free(*model);
*model = NULL;
}
void egl_model_set_default(EGL_Model * model)
{
static const GLfloat square[] =
{
-1.0f, -1.0f, 0.0f,
1.0f, -1.0f, 0.0f,
-1.0f, 1.0f, 0.0f,
1.0f, 1.0f, 0.0f
};
static const GLfloat uvs[] =
{
0.0f, 1.0f,
1.0f, 1.0f,
0.0f, 0.0f,
1.0f, 0.0f
};
egl_model_add_verticies(model, square, uvs, 4);
}
void egl_model_add_verticies(EGL_Model * model, const GLfloat * verticies, const GLfloat * uvs, const size_t count)
{
struct FloatList * fl = (struct FloatList *)malloc(sizeof(struct FloatList));
fl->count = count;
fl->v = (GLfloat *)malloc(sizeof(GLfloat) * count * 3);
fl->u = (GLfloat *)malloc(sizeof(GLfloat) * count * 2);
memcpy(fl->v, verticies, sizeof(GLfloat) * count * 3);
if (uvs)
memcpy(fl->u, uvs, sizeof(GLfloat) * count * 2);
else
memset(fl->u, 0 , sizeof(GLfloat) * count * 2);
ll_push(model->verticies, fl);
model->rebuild = true;
model->vertexCount += count;
}
void egl_model_render(EGL_Model * model)
{
if (!model->vertexCount)
return;
if (model->rebuild)
{
if (model->hasBuffer)
glDeleteBuffers(1, &model->buffer);
/* create a buffer large enough */
glGenBuffers(1, &model->buffer);
glBindBuffer(GL_ARRAY_BUFFER, model->buffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * (model->vertexCount * 5), NULL, GL_STATIC_DRAW);
GLintptr offset = 0;
/* buffer the verticies */
struct FloatList * fl;
for(ll_reset(model->verticies); ll_walk(model->verticies, (void **)&fl);)
{
glBufferSubData(GL_ARRAY_BUFFER, offset, sizeof(GLfloat) * fl->count * 3, fl->v);
offset += sizeof(GLfloat) * fl->count * 3;
}
/* buffer the uvs */
for(ll_reset(model->verticies); ll_walk(model->verticies, (void **)&fl);)
{
glBufferSubData(GL_ARRAY_BUFFER, offset, sizeof(GLfloat) * fl->count * 2, fl->u);
offset += sizeof(GLfloat) * fl->count * 2;
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
model->rebuild = false;
}
/* bind the model buffer and setup the pointers */
glBindBuffer(GL_ARRAY_BUFFER, model->buffer);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (void*)0);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 0, (void*)(sizeof(GLfloat) * model->vertexCount * 3));
if (model->shader)
egl_shader_use(model->shader);
if (model->texture)
egl_texture_bind(model->texture);
/* draw the arrays */
GLint offset = 0;
struct FloatList * fl;
for(ll_reset(model->verticies); ll_walk(model->verticies, (void **)&fl);)
{
glDrawArrays(GL_TRIANGLE_STRIP, offset, fl->count);
offset += fl->count;
}
/* unbind and cleanup */
glBindTexture(GL_TEXTURE_2D, 0);
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
glUseProgram(0);
}
void egl_model_set_shader(EGL_Model * model, EGL_Shader * shader)
{
model->shader = shader;
update_uniform_bindings(model);
}
void egl_model_set_texture(EGL_Model * model, EGL_Texture * texture)
{
model->texture = texture;
update_uniform_bindings(model);
}
void update_uniform_bindings(EGL_Model * model)
{
if (!model->shader || !model->texture)
return;
const int count = egl_texture_count(model->texture);
egl_shader_associate_textures(model->shader, count);
}

38
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <stdbool.h>
#include "shader.h"
#include "texture.h"
#include <GL/gl.h>
typedef struct EGL_Model EGL_Model;
bool egl_model_init(EGL_Model ** model);
void egl_model_free(EGL_Model ** model);
void egl_model_set_default (EGL_Model * model);
void egl_model_add_verticies(EGL_Model * model, const GLfloat * verticies, const GLfloat * uvs, const size_t count);
void egl_model_set_shader (EGL_Model * model, EGL_Shader * shader);
void egl_model_set_texture (EGL_Model * model, EGL_Texture * texture);
void egl_model_render(EGL_Model * model);

225
client/renderers/EGL/shader.c Normal file
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "shader.h"
#include "debug.h"
#include "utils.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <SDL2/SDL_egl.h>
struct EGL_Shader
{
bool hasShader;
GLuint shader;
};
bool egl_shader_init(EGL_Shader ** this)
{
*this = (EGL_Shader *)malloc(sizeof(EGL_Shader));
if (!*this)
{
DEBUG_ERROR("Failed to malloc EGL_Shader");
return false;
}
memset(*this, 0, sizeof(EGL_Shader));
return true;
}
void egl_shader_free(EGL_Shader ** this)
{
if (!*this)
return;
if ((*this)->hasShader)
glDeleteProgram((*this)->shader);
free(*this);
*this = NULL;
}
bool egl_shader_load(EGL_Shader * this, const char * vertex_file, const char * fragment_file)
{
char * vertex_code, * fragment_code;
size_t vertex_size, fragment_size;
if (!file_get_contents(vertex_file, &vertex_code, &vertex_size))
{
DEBUG_ERROR("Failed to read vertex shader");
return false;
}
DEBUG_INFO("Loaded vertex shader: %s", vertex_file);
if (!file_get_contents(fragment_file, &fragment_code, &fragment_size))
{
DEBUG_ERROR("Failed to read fragment shader");
free(vertex_code);
return false;
}
DEBUG_INFO("Loaded fragment shader: %s", fragment_file);
bool ret = egl_shader_compile(this, vertex_code, vertex_size, fragment_code, fragment_size);
free(vertex_code);
free(fragment_code);
return ret;
}
bool egl_shader_compile(EGL_Shader * this, const char * vertex_code, size_t vertex_size, const char * fragment_code, size_t fragment_size)
{
if (this->hasShader)
{
glDeleteProgram(this->shader);
this->hasShader = false;
}
GLint length;
GLuint vertexShader = glCreateShader(GL_VERTEX_SHADER);
length = vertex_size;
glShaderSource(vertexShader, 1, (const char**)&vertex_code, &length);
glCompileShader(vertexShader);
GLint result = GL_FALSE;
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &result);
if (result == GL_FALSE)
{
DEBUG_ERROR("Failed to compile vertex shader");
int logLength;
glGetShaderiv(vertexShader, GL_INFO_LOG_LENGTH, &logLength);
if (logLength > 0)
{
char *log = malloc(logLength + 1);
glGetShaderInfoLog(vertexShader, logLength, NULL, log);
log[logLength] = 0;
DEBUG_ERROR("%s", log);
free(log);
}
glDeleteShader(vertexShader);
return false;
}
GLuint fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
length = fragment_size;
glShaderSource(fragmentShader, 1, (const char**)&fragment_code, &length);
glCompileShader(fragmentShader);
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &result);
if (result == GL_FALSE)
{
DEBUG_ERROR("Failed to compile fragment shader");
int logLength;
glGetShaderiv(fragmentShader, GL_INFO_LOG_LENGTH, &logLength);
if (logLength > 0)
{
char *log = malloc(logLength + 1);
glGetShaderInfoLog(fragmentShader, logLength, NULL, log);
log[logLength] = 0;
DEBUG_ERROR("%s", log);
free(log);
}
glDeleteShader(fragmentShader);
glDeleteShader(vertexShader );
return false;
}
this->shader = glCreateProgram();
glAttachShader(this->shader, vertexShader );
glAttachShader(this->shader, fragmentShader);
glLinkProgram(this->shader);
glGetProgramiv(this->shader, GL_LINK_STATUS, &result);
if (result == GL_FALSE)
{
DEBUG_ERROR("Failed to link shader program");
int logLength;
glGetProgramiv(this->shader, GL_INFO_LOG_LENGTH, &logLength);
if (logLength > 0)
{
char *log = malloc(logLength + 1);
glGetProgramInfoLog(this->shader, logLength, NULL, log);
log[logLength] = 0;
DEBUG_ERROR("%s", log);
free(log);
}
glDetachShader(this->shader, vertexShader );
glDetachShader(this->shader, fragmentShader);
glDeleteShader(fragmentShader);
glDeleteShader(vertexShader );
glDeleteProgram(this->shader );
return false;
}
glDetachShader(this->shader, vertexShader );
glDetachShader(this->shader, fragmentShader);
glDeleteShader(fragmentShader);
glDeleteShader(vertexShader );
this->hasShader = true;
return true;
}
void egl_shader_use(EGL_Shader * this)
{
if (this->hasShader)
glUseProgram(this->shader);
else
DEBUG_ERROR("Shader program has not been compiled");
}
void egl_shader_associate_textures(EGL_Shader * this, const int count)
{
char name[] = "sampler1";
glUseProgram(this->shader);
for(int i = 0; i < count; ++i, name[7]++)
{
GLint loc = glGetUniformLocation(this->shader, name);
if (loc == -1)
{
DEBUG_WARN("Shader uniform location `%s` not found", name);
continue;
}
glUniform1i(loc, i);
}
glUseProgram(0);
}
GLint egl_shader_get_uniform_location(EGL_Shader * this, const char * name)
{
if (!this->shader)
{
DEBUG_ERROR("Shader program has not been compiled");
return 0;
}
return glGetUniformLocation(this->shader, name);
}

36
client/renderers/EGL/shader.h Normal file
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <stdbool.h>
#include <GL/gl.h>
typedef struct EGL_Shader EGL_Shader;
bool egl_shader_init(EGL_Shader ** shader);
void egl_shader_free(EGL_Shader ** shader);
bool egl_shader_load (EGL_Shader * model, const char * vertex_file, const char * fragment_file);
bool egl_shader_compile(EGL_Shader * model, const char * vertex_code, size_t vertex_size, const char * fragment_code, size_t fragment_size);
void egl_shader_use (EGL_Shader * shader);
void egl_shader_associate_textures(EGL_Shader * shader, const int count);
GLint egl_shader_get_uniform_location(EGL_Shader * shader, const char * name);

11
client/renderers/EGL/shader/alert.frag Normal file
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#version 300 es
in highp vec2 uv;
out highp vec4 color;
uniform sampler2D sampler1;
void main()
{
color = texture(sampler1, uv);
}

21
client/renderers/EGL/shader/alert.vert Normal file
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@@ -0,0 +1,21 @@
#version 300 es
layout(location = 0) in vec3 vertexPosition_modelspace;
layout(location = 1) in vec2 vertexUV;
uniform vec2 screen;
uniform vec2 size;
uniform vec4 color;
out highp vec2 uv;
out highp vec4 c;
void main()
{
gl_Position.xyz = vertexPosition_modelspace;
gl_Position.w = 1.0;
gl_Position.xy *= screen.xy * size.xy;
uv = vertexUV;
c = color;
}

9
client/renderers/EGL/shader/alert_bg.frag Normal file
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@@ -0,0 +1,9 @@
#version 300 es
in highp vec4 c;
out highp vec4 color;
void main()
{
color = c;
}

25
client/renderers/EGL/shader/cursor.vert Normal file
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@@ -0,0 +1,25 @@
#version 300 es
layout(location = 0) in vec3 vertexPosition_modelspace;
layout(location = 1) in vec2 vertexUV;
uniform vec4 mouse;
out highp vec2 uv;
void main()
{
gl_Position.xyz = vertexPosition_modelspace;
gl_Position.w = 1.0;
gl_Position.x += 1.0f;
gl_Position.y -= 1.0f;
gl_Position.x *= mouse.z;
gl_Position.y *= mouse.w;
gl_Position.x += mouse.x;
gl_Position.y -= mouse.y;
uv = vertexUV;
}

14
client/renderers/EGL/shader/cursor_mono.frag Normal file
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@@ -0,0 +1,14 @@
#version 300 es
in highp vec2 uv;
out highp vec4 color;
uniform sampler2D sampler1;
void main()
{
highp vec4 tmp = texture(sampler1, uv);
if (tmp.rgb == vec3(0.0, 0.0, 0.0))
discard;
color = tmp;
}

11
client/renderers/EGL/shader/cursor_rgb.frag Normal file
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@@ -0,0 +1,11 @@
#version 300 es
in highp vec2 uv;
out highp vec4 color;
uniform sampler2D sampler1;
void main()
{
color = texture(sampler1, uv);
}

20
client/renderers/EGL/shader/desktop.vert Normal file
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@@ -0,0 +1,20 @@
#version 300 es
layout(location = 0) in vec3 vertexPosition_modelspace;
layout(location = 1) in vec2 vertexUV;
uniform vec4 position;
out highp vec2 uv;
void main()
{
gl_Position.xyz = vertexPosition_modelspace;
gl_Position.w = 1.0;
gl_Position.x -= position.x;
gl_Position.y -= position.y;
gl_Position.x *= position.z;
gl_Position.y *= position.w;
uv = vertexUV;
}

11
client/renderers/EGL/shader/desktop_rgb.frag Normal file
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@@ -0,0 +1,11 @@
#version 300 es
in highp vec2 uv;
out highp vec4 color;
uniform sampler2D sampler1;
void main()
{
color = texture(sampler1, uv);
}

27
client/renderers/EGL/shader/desktop_yuv.frag Normal file
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@@ -0,0 +1,27 @@
#version 300 es
in highp vec2 uv;
out highp vec4 color;
uniform sampler2D sampler1;
uniform sampler2D sampler2;
uniform sampler2D sampler3;
void main()
{
highp vec4 yuv = vec4(
texture(sampler1, uv).r,
texture(sampler2, uv).r,
texture(sampler3, uv).r,
1.0
);
highp mat4 yuv_to_rgb = mat4(
1.0, 0.0 , 1.402, -0.701,
1.0, -0.344, -0.714, 0.529,
1.0, 1.772, 0.0 , -0.886,
1.0, 1.0 , 1.0 , 1.0
);
color = yuv * yuv_to_rgb;
}

11
client/renderers/EGL/shader/fps.frag Normal file
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@@ -0,0 +1,11 @@
#version 300 es
in highp vec2 uv;
out highp vec4 color;
uniform sampler2D sampler1;
void main()
{
color = texture(sampler1, uv);
}

22
client/renderers/EGL/shader/fps.vert Normal file
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@@ -0,0 +1,22 @@
#version 300 es
layout(location = 0) in vec3 vertexPosition_modelspace;
layout(location = 1) in vec2 vertexUV;
uniform vec2 screen;
uniform vec2 size;
out highp vec2 uv;
void main()
{
gl_Position.xyz = vertexPosition_modelspace;
gl_Position.w = 1.0;
gl_Position.xy *= screen.xy * size.xy;
gl_Position.x -= 1.0 - (screen.x * size.x);
gl_Position.y += 1.0 - (screen.y * size.y);
gl_Position.x += screen.x * 10.0;
gl_Position.y -= screen.y * 10.0;
uv = vertexUV;
}

8
client/renderers/EGL/shader/fps_bg.frag Normal file
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@@ -0,0 +1,8 @@
#version 300 es
out highp vec4 color;
void main()
{
color = vec4(0.0, 0.0, 1.0, 0.5);
}

13
client/renderers/EGL/shader/splash_bg.frag Normal file
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@@ -0,0 +1,13 @@
#version 300 es
in highp vec3 pos;
in highp float a;
out highp vec4 color;
uniform sampler2D sampler1;
void main()
{
highp float d = 1.0 - sqrt(pos.x * pos.x + pos.y * pos.y) / 2.0;
color = vec4(0.234375 * d, 0.015625f * d, 0.425781f * d, a);
}

17
client/renderers/EGL/shader/splash_bg.vert Normal file
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@@ -0,0 +1,17 @@
#version 300 es
layout(location = 0) in vec3 vertexPosition_modelspace;
uniform float alpha;
out highp vec3 pos;
out highp float a;
void main()
{
gl_Position.xyz = vertexPosition_modelspace;
gl_Position.w = 1.0;
pos = vertexPosition_modelspace;
a = alpha;
}

11
client/renderers/EGL/shader/splash_logo.frag Normal file
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@@ -0,0 +1,11 @@
#version 300 es
out highp vec4 color;
in highp float a;
uniform sampler2D sampler1;
void main()
{
color = vec4(1.0, 1.0, 1.0, a);
}

16
client/renderers/EGL/shader/splash_logo.vert Normal file
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@@ -0,0 +1,16 @@
#version 300 es
layout(location = 0) in vec3 vertexPosition_modelspace;
uniform vec2 scale;
out highp float a;
void main()
{
gl_Position.xyz = vertexPosition_modelspace;
gl_Position.y *= scale.y;
gl_Position.w = 1.0;
a = scale.x;
}

177
client/renderers/EGL/splash.c Normal file
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@@ -0,0 +1,177 @@
/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
cahe terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "splash.h"
#include "debug.h"
#include "utils.h"
#include "draw.h"
#include "texture.h"
#include "shader.h"
#include "model.h"
#include <GL/gl.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
// these headers are auto generated by cmake
#include "splash_bg.vert.h"
#include "splash_bg.frag.h"
#include "splash_logo.vert.h"
#include "splash_logo.frag.h"
struct EGL_Splash
{
EGL_Shader * bgShader;
EGL_Model * bg;
EGL_Shader * logoShader;
EGL_Model * logo;
// uniforms
GLint uBGAlpha;
GLint uScale;
};
bool egl_splash_init(EGL_Splash ** splash)
{
*splash = (EGL_Splash *)malloc(sizeof(EGL_Splash));
if (!*splash)
{
DEBUG_ERROR("Failed to malloc EGL_Splash");
return false;
}
memset(*splash, 0, sizeof(EGL_Splash));
if (!egl_shader_init(&(*splash)->bgShader))
{
DEBUG_ERROR("Failed to initialize the splash bgShader");
return false;
}
if (!egl_shader_compile((*splash)->bgShader,
b_shader_splash_bg_vert, b_shader_splash_bg_vert_size,
b_shader_splash_bg_frag, b_shader_splash_bg_frag_size))
{
DEBUG_ERROR("Failed to compile the splash bgShader");
return false;
}
(*splash)->uBGAlpha = egl_shader_get_uniform_location((*splash)->bgShader, "alpha");
if (!egl_model_init(&(*splash)->bg))
{
DEBUG_ERROR("Failed to intiailize the splash bg model");
return false;
}
egl_model_set_default((*splash)->bg);
if (!egl_shader_init(&(*splash)->logoShader))
{
DEBUG_ERROR("Failed to initialize the splash logoShader");
return false;
}
if (!egl_shader_compile((*splash)->logoShader,
b_shader_splash_logo_vert, b_shader_splash_logo_vert_size,
b_shader_splash_logo_frag, b_shader_splash_logo_frag_size))
{
DEBUG_ERROR("Failed to compile the splash logoShader");
return false;
}
(*splash)->uScale = egl_shader_get_uniform_location((*splash)->logoShader, "scale");
if (!egl_model_init(&(*splash)->logo))
{
DEBUG_ERROR("Failed to intiailize the splash model");
return false;
}
/* build the splash model */
#define P(x) ((1.0f/800.0f)*(float)(x))
egl_draw_torus_arc((*splash)->logo, 30, P( 0 ), P(0), P(102), P(98), 0.0f, -M_PI);
egl_draw_torus ((*splash)->logo, 30, P(-100), P(8), P(8 ), P(4 ));
egl_draw_torus ((*splash)->logo, 30, P( 100), P(8), P(8 ), P(4 ));
egl_draw_torus ((*splash)->logo, 60, P(0), P(0), P(83), P(79));
egl_draw_torus ((*splash)->logo, 60, P(0), P(0), P(67), P(63));
static const GLfloat lines[][12] =
{
{
P( -2), P(-140), 0.0f,
P( -2), P(-100), 0.0f,
P( 2), P(-140), 0.0f,
P( 2), P(-100), 0.0f
},
{
P(-26), P(-144), 0.0f,
P(-26), P(-140), 0.0f,
P( 26), P(-144), 0.0f,
P( 26), P(-140), 0.0f
},
{
P(-40), P(-156), 0.0f,
P(-40), P(-152), 0.0f,
P( 40), P(-156), 0.0f,
P( 40), P(-152), 0.0f
}
};
egl_model_add_verticies((*splash)->logo, lines[0], NULL, 4);
egl_model_add_verticies((*splash)->logo, lines[1], NULL, 4);
egl_model_add_verticies((*splash)->logo, lines[2], NULL, 4);
egl_draw_torus_arc((*splash)->logo, 10, P(-26), P(-154), P(10), P(14), M_PI , -M_PI / 2.0);
egl_draw_torus_arc((*splash)->logo, 10, P( 26), P(-154), P(10), P(14), M_PI / 2.0f, -M_PI / 2.0);
#undef P
return true;
}
void egl_splash_free(EGL_Splash ** splash)
{
if (!*splash)
return;
egl_model_free(&(*splash)->logo);
free(*splash);
*splash = NULL;
}
void egl_splash_render(EGL_Splash * splash, float alpha, float scaleY)
{
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
egl_shader_use(splash->bgShader);
glUniform1f(splash->uBGAlpha, alpha);
egl_model_render(splash->bg);
egl_shader_use(splash->logoShader);
glUniform2f(splash->uScale, alpha, scaleY);
egl_model_render(splash->logo);
glDisable(GL_BLEND);
}

29
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <stdbool.h>
typedef struct EGL_Splash EGL_Splash;
bool egl_splash_init(EGL_Splash ** splash);
void egl_splash_free(EGL_Splash ** splash);
void egl_splash_render(EGL_Splash * splash, float alpha, float scaleY);

267
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "texture.h"
#include "debug.h"
#include "utils.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <SDL2/SDL_egl.h>
struct EGL_Texture
{
enum EGL_PixelFormat pixFmt;
size_t width, height;
bool streaming;
int textureCount;
GLuint textures[3];
GLuint samplers[3];
size_t planes[3][3];
GLintptr offsets[3];
GLenum intFormat;
GLenum format;
GLenum dataType;
bool hasPBO;
GLuint pbo[2];
int pboIndex;
bool needsUpdate;
size_t pboBufferSize;
};
bool egl_texture_init(EGL_Texture ** texture)
{
*texture = (EGL_Texture *)malloc(sizeof(EGL_Texture));
if (!*texture)
{
DEBUG_ERROR("Failed to malloc EGL_Texture");
return false;
}
memset(*texture, 0, sizeof(EGL_Texture));
return true;
}
void egl_texture_free(EGL_Texture ** texture)
{
if (!*texture)
return;
if ((*texture)->textureCount > 0)
{
glDeleteTextures((*texture)->textureCount, (*texture)->textures);
glDeleteSamplers((*texture)->textureCount, (*texture)->samplers);
}
if ((*texture)->hasPBO)
glDeleteBuffers(2, (*texture)->pbo);
free(*texture);
*texture = NULL;
}
bool egl_texture_setup(EGL_Texture * texture, enum EGL_PixelFormat pixFmt, size_t width, size_t height, size_t stride, bool streaming)
{
int textureCount;
texture->pixFmt = pixFmt;
texture->width = width;
texture->height = height;
texture->streaming = streaming;
switch(pixFmt)
{
case EGL_PF_BGRA:
textureCount = 1;
texture->format = GL_BGRA;
texture->planes[0][0] = width;
texture->planes[0][1] = height;
texture->planes[0][2] = stride / 4;
texture->offsets[0] = 0;
texture->intFormat = GL_BGRA;
texture->dataType = GL_UNSIGNED_BYTE;
texture->pboBufferSize = height * stride;
break;
case EGL_PF_RGBA:
textureCount = 1;
texture->format = GL_RGBA;
texture->planes[0][0] = width;
texture->planes[0][1] = height;
texture->planes[0][2] = stride / 4;
texture->offsets[0] = 0;
texture->intFormat = GL_BGRA;
texture->dataType = GL_UNSIGNED_BYTE;
texture->pboBufferSize = height * stride;
break;
case EGL_PF_RGBA10:
textureCount = 1;
texture->format = GL_RGBA;
texture->planes[0][0] = width;
texture->planes[0][1] = height;
texture->planes[0][2] = stride / 4;
texture->offsets[0] = 0;
texture->intFormat = GL_RGB10_A2;
texture->dataType = GL_UNSIGNED_INT_2_10_10_10_REV;
texture->pboBufferSize = height * stride;
break;
case EGL_PF_YUV420:
textureCount = 3;
texture->format = GL_RED;
texture->planes[0][0] = width;
texture->planes[0][1] = height;
texture->planes[0][2] = stride;
texture->planes[1][0] = width / 2;
texture->planes[1][1] = height / 2;
texture->planes[1][2] = stride / 2;
texture->planes[2][0] = width / 2;
texture->planes[2][1] = height / 2;
texture->planes[2][2] = stride / 2;
texture->offsets[0] = 0;
texture->offsets[1] = stride * height;
texture->offsets[2] = texture->offsets[1] + (texture->offsets[1] / 4);
texture->dataType = GL_UNSIGNED_BYTE;
texture->pboBufferSize = texture->offsets[2] + (texture->offsets[1] / 4);
break;
default:
DEBUG_ERROR("Unsupported pixel format");
return false;
}
if (textureCount > texture->textureCount)
{
if (texture->textureCount > 0)
{
glDeleteTextures(texture->textureCount, texture->textures);
glDeleteSamplers(texture->textureCount, texture->samplers);
}
texture->textureCount = textureCount;
glGenTextures(texture->textureCount, texture->textures);
glGenSamplers(texture->textureCount, texture->samplers);
}
for(int i = 0; i < textureCount; ++i)
{
glSamplerParameteri(texture->samplers[i], GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glSamplerParameteri(texture->samplers[i], GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glSamplerParameteri(texture->samplers[i], GL_TEXTURE_WRAP_S , GL_CLAMP_TO_EDGE);
glSamplerParameteri(texture->samplers[i], GL_TEXTURE_WRAP_T , GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, texture->textures[i]);
glTexImage2D(GL_TEXTURE_2D, 0, texture->intFormat, texture->planes[i][0], texture->planes[i][1],
0, texture->format, texture->dataType, NULL);
}
glBindTexture(GL_TEXTURE_2D, 0);
if (streaming)
{
if (!texture->hasPBO)
{
glGenBuffers(2, texture->pbo);
texture->hasPBO = true;
}
for(int i = 0; i < 2; ++i)
{
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->pbo[i]);
glBufferData(
GL_PIXEL_UNPACK_BUFFER,
height * stride,
NULL,
GL_DYNAMIC_DRAW
);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
}
}
return true;
}
bool egl_texture_update(EGL_Texture * texture, const uint8_t * buffer)
{
if (texture->streaming)
{
if (texture->needsUpdate)
{
DEBUG_ERROR("Previous frame was not consumed");
return false;
}
if (++texture->pboIndex == 2)
texture->pboIndex = 0;
/* initiate the data upload */
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->pbo[texture->pboIndex]);
glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, texture->pboBufferSize, buffer);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
texture->needsUpdate = true;
}
else
{
for(int i = 0; i < texture->textureCount; ++i)
{
glBindTexture(GL_TEXTURE_2D, texture->textures[i]);
glPixelStorei(GL_UNPACK_ROW_LENGTH, texture->planes[i][0]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texture->planes[i][0], texture->planes[i][1],
texture->format, texture->dataType, buffer + texture->offsets[i]);
}
glBindTexture(GL_TEXTURE_2D, 0);
}
return true;
}
void egl_texture_bind(EGL_Texture * texture)
{
if (texture->streaming && texture->needsUpdate)
{
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->pbo[texture->pboIndex]);
for(int i = 0; i < texture->textureCount; ++i)
{
glBindTexture(GL_TEXTURE_2D, texture->textures[i]);
glPixelStorei(GL_UNPACK_ROW_LENGTH, texture->planes[i][2]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texture->planes[i][0], texture->planes[i][1],
texture->format, texture->dataType, (const void *)texture->offsets[i]);
}
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
glBindTexture(GL_TEXTURE_2D, 0);
texture->needsUpdate = false;
}
for(int i = 0; i < texture->textureCount; ++i)
{
glActiveTexture(GL_TEXTURE0 + i);
glBindTexture(GL_TEXTURE_2D, texture->textures[i]);
glBindSampler(i, texture->samplers[i]);
}
}
int egl_texture_count(EGL_Texture * texture)
{
return texture->textureCount;
}

43
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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <stdbool.h>
#include "shader.h"
#include <GL/gl.h>
typedef struct EGL_Texture EGL_Texture;
enum EGL_PixelFormat
{
EGL_PF_RGBA,
EGL_PF_BGRA,
EGL_PF_RGBA10,
EGL_PF_YUV420
};
bool egl_texture_init(EGL_Texture ** tex);
void egl_texture_free(EGL_Texture ** tex);
bool egl_texture_setup (EGL_Texture * texture, enum EGL_PixelFormat pixfmt, size_t width, size_t height, size_t stride, bool streaming);
bool egl_texture_update(EGL_Texture * texture, const uint8_t * buffer);
void egl_texture_bind (EGL_Texture * texture);
int egl_texture_count (EGL_Texture * texture);