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[client] egl: move shaders into seperate files and build into objects

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This commit is contained in:
Geoffrey McRae
2019-03-28 14:59:54 +11:00
parent 52c4e15c76
commit d5a52241b0
7 changed files with 114 additions and 74 deletions
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13
client/renderers/egl/CMakeLists.txt
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@@ -1,13 +1,22 @@
cmake_minimum_required(VERSION 3.6)
project(renderer_egl LANGUAGES C)
find_package(PkgConfig)
include(GNUInstallDirs)
include(MakeObject)
pkg_check_modules(RENDERER_EGL_PKGCONFIG REQUIRED
egl
wayland-egl
gl
)
make_object(
EGL_SHADER
shader/desktop.vert
shader/desktop_rgb.frag
shader/desktop_yuv.frag
)
add_library(renderer_egl STATIC
egl.c
shader.c
@@ -19,6 +28,7 @@ add_library(renderer_egl STATIC
draw.c
splash.c
alert.c
${EGL_SHADER_OBJS}
)
target_link_libraries(renderer_egl
@@ -28,5 +38,6 @@ target_link_libraries(renderer_egl
target_include_directories(renderer_egl
PRIVATE
src
${EGL_SHADER_INCS}
${RENDERER_EGL_PKGCONFIG_INCLUDE_DIRS}
)

81
client/renderers/egl/desktop.c
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@@ -28,6 +28,11 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#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;
@@ -49,74 +54,6 @@ struct EGL_Desktop
bool update;
};
static const char vertex_shader[] = "\
#version 300 es\n\
\
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;\
}\
";
static const char frag_generic[] = "\
#version 300 es\n\
\
in highp vec2 uv;\
out highp vec4 color;\
\
uniform sampler2D sampler1;\
\
void main()\
{\
color = texture(sampler1, uv);\
}\
";
static const char frag_yuv[] = "\
#version 300 es\n\
\
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;\
}\
";
bool egl_desktop_init(EGL_Desktop ** desktop)
{
*desktop = (EGL_Desktop *)malloc(sizeof(EGL_Desktop));
@@ -147,16 +84,16 @@ bool egl_desktop_init(EGL_Desktop ** desktop)
}
if (!egl_shader_compile((*desktop)->shader_generic,
vertex_shader, sizeof(vertex_shader),
frag_generic , sizeof(frag_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,
vertex_shader, sizeof(vertex_shader),
frag_yuv , sizeof(frag_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;

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;
}