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[client] fix race condition on initial uniform access

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This commit is contained in:
Geoffrey McRae 2019-05-22 11:36:18 +10:00
parent 3f404905d2
commit 087387087e
1 changed files with 62 additions and 52 deletions
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114
client/renderers/EGL/desktop.c
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@ -35,21 +35,24 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include "desktop_rgb.frag.h" #include "desktop_rgb.frag.h"
#include "desktop_yuv.frag.h" #include "desktop_yuv.frag.h"
struct EGL_Desktop struct DesktopShader
{ {
EGL_Texture * texture; EGL_Shader * shader;
EGL_Shader * shader; // the active shader
EGL_Model * model;
// shader instances
EGL_Shader * shader_generic;
EGL_Shader * shader_yuv;
// uniforms
GLint uDesktopPos; GLint uDesktopPos;
GLint uDesktopSize; GLint uDesktopSize;
GLint uNearest; GLint uNearest;
GLint uNV, uNVGain; GLint uNV, uNVGain;
};
struct EGL_Desktop
{
EGL_Texture * texture;
struct DesktopShader * shader; // the active shader
EGL_Model * model;
// shader instances
struct DesktopShader shader_generic;
struct DesktopShader shader_yuv;
// internals // internals
enum EGL_PixelFormat pixFmt; enum EGL_PixelFormat pixFmt;
@ -67,6 +70,31 @@ struct EGL_Desktop
// forwards // forwards
void egl_desktop_toggle_nv(SDL_Scancode key, void * opaque); void egl_desktop_toggle_nv(SDL_Scancode key, void * opaque);
static bool egl_init_desktop_shader(
struct DesktopShader * shader,
const char * vertex_code , size_t vertex_size,
const char * fragment_code, size_t fragment_size
)
{
if (!egl_shader_init(&shader->shader))
return false;
if (!egl_shader_compile(shader->shader,
vertex_code , vertex_size,
fragment_code, fragment_size))
{
return false;
}
shader->uDesktopPos = egl_shader_get_uniform_location(shader->shader, "position");
shader->uDesktopSize = egl_shader_get_uniform_location(shader->shader, "size" );
shader->uNearest = egl_shader_get_uniform_location(shader->shader, "nearest" );
shader->uNV = egl_shader_get_uniform_location(shader->shader, "nv" );
shader->uNVGain = egl_shader_get_uniform_location(shader->shader, "nvGain" );
return true;
}
bool egl_desktop_init(EGL_Desktop ** desktop) bool egl_desktop_init(EGL_Desktop ** desktop)
{ {
*desktop = (EGL_Desktop *)malloc(sizeof(EGL_Desktop)); *desktop = (EGL_Desktop *)malloc(sizeof(EGL_Desktop));
@ -84,34 +112,24 @@ bool egl_desktop_init(EGL_Desktop ** desktop)
return false; return false;
} }
if (!egl_shader_init(&(*desktop)->shader_generic)) if (!egl_init_desktop_shader(
&(*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 initialize the generic desktop shader"); DEBUG_ERROR("Failed to initialize the generic desktop shader");
return false; return false;
} }
if (!egl_shader_init(&(*desktop)->shader_yuv)) if (!egl_init_desktop_shader(
&(*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 initialize the yuv desktop shader"); DEBUG_ERROR("Failed to initialize the yuv desktop shader");
return false; 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)) if (!egl_model_init(&(*desktop)->model))
{ {
DEBUG_ERROR("Failed to initialize the desktop model"); DEBUG_ERROR("Failed to initialize the desktop model");
@ -143,10 +161,10 @@ void egl_desktop_free(EGL_Desktop ** desktop)
if (!*desktop) if (!*desktop)
return; return;
egl_texture_free(&(*desktop)->texture ); egl_texture_free(&(*desktop)->texture );
egl_shader_free (&(*desktop)->shader_generic); egl_shader_free (&(*desktop)->shader_generic.shader);
egl_shader_free (&(*desktop)->shader_yuv ); egl_shader_free (&(*desktop)->shader_yuv.shader );
egl_model_free (&(*desktop)->model ); egl_model_free (&(*desktop)->model );
app_release_keybind(&(*desktop)->kbNV); app_release_keybind(&(*desktop)->kbNV);
@ -162,22 +180,22 @@ bool egl_desktop_prepare_update(EGL_Desktop * desktop, const bool sourceChanged,
{ {
case FRAME_TYPE_BGRA: case FRAME_TYPE_BGRA:
desktop->pixFmt = EGL_PF_BGRA; desktop->pixFmt = EGL_PF_BGRA;
desktop->shader = desktop->shader_generic; desktop->shader = &desktop->shader_generic;
break; break;
case FRAME_TYPE_RGBA: case FRAME_TYPE_RGBA:
desktop->pixFmt = EGL_PF_RGBA; desktop->pixFmt = EGL_PF_RGBA;
desktop->shader = desktop->shader_generic; desktop->shader = &desktop->shader_generic;
break; break;
case FRAME_TYPE_RGBA10: case FRAME_TYPE_RGBA10:
desktop->pixFmt = EGL_PF_RGBA10; desktop->pixFmt = EGL_PF_RGBA10;
desktop->shader = desktop->shader_generic; desktop->shader = &desktop->shader_generic;
break; break;
case FRAME_TYPE_YUV420: case FRAME_TYPE_YUV420:
desktop->pixFmt = EGL_PF_YUV420; desktop->pixFmt = EGL_PF_YUV420;
desktop->shader = desktop->shader_yuv; desktop->shader = &desktop->shader_yuv;
break; break;
default: default:
@ -200,15 +218,6 @@ bool egl_desktop_perform_update(EGL_Desktop * desktop, const bool sourceChanged)
{ {
if (sourceChanged) if (sourceChanged)
{ {
if (desktop->shader)
{
desktop->uDesktopPos = egl_shader_get_uniform_location(desktop->shader, "position");
desktop->uDesktopSize = egl_shader_get_uniform_location(desktop->shader, "size" );
desktop->uNearest = egl_shader_get_uniform_location(desktop->shader, "nearest" );
desktop->uNV = egl_shader_get_uniform_location(desktop->shader, "nv" );
desktop->uNVGain = egl_shader_get_uniform_location(desktop->shader, "nvGain" );
}
if (!egl_texture_setup( if (!egl_texture_setup(
desktop->texture, desktop->texture,
desktop->pixFmt, desktop->pixFmt,
@ -241,18 +250,19 @@ void egl_desktop_render(EGL_Desktop * desktop, const float x, const float y, con
if (!desktop->shader) if (!desktop->shader)
return; return;
egl_shader_use(desktop->shader); const struct DesktopShader * shader = desktop->shader;
glUniform4f(desktop->uDesktopPos , x, y, scaleX, scaleY); egl_shader_use(shader->shader);
glUniform1i(desktop->uNearest , nearest ? 1 : 0); glUniform4f(shader->uDesktopPos , x, y, scaleX, scaleY);
glUniform2f(desktop->uDesktopSize, desktop->width, desktop->height); glUniform1i(shader->uNearest , nearest ? 1 : 0);
glUniform2f(shader->uDesktopSize, desktop->width, desktop->height);
if (desktop->nvGain) if (desktop->nvGain)
{ {
glUniform1i(desktop->uNV, 1); glUniform1i(shader->uNV, 1);
glUniform1f(desktop->uNVGain, (float)desktop->nvGain); glUniform1f(shader->uNVGain, (float)desktop->nvGain);
} }
else else
glUniform1i(desktop->uNV, 0); glUniform1i(shader->uNV, 0);
egl_model_render(desktop->model); egl_model_render(desktop->model);
} }