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Detect if hardware supports S3TC.

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This commit is contained in:
Bartosz Taudul 2022-10-15 12:56:19 +02:00
parent 5b1c1119c5
commit fdb130651d
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GPG Key ID: B7FE2008B7575DF3
3 changed files with 29 additions and 1 deletions
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1
profiler/src/main.cpp
View File

@ -221,6 +221,7 @@ int main( int argc, char** argv )
ImGuiTracyContext imguiContext;
Backend backend( title, DrawContents, &mainThreadTasks );
tracy::InitTexture();
iconTex = tracy::MakeTexture();
iconThread.join();
backend.SetIcon( iconPx, iconX, iconY );

28
server/TracyTexture.cpp
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@ -1,6 +1,7 @@
#include <inttypes.h>
#ifdef __EMSCRIPTEN__
# include <emscripten/html5.h>
# include <GLES2/gl2.h>
#else
# include "../profiler/src/imgui/imgui_impl_opengl3_loader.h"
@ -14,6 +15,28 @@
namespace tracy
{
static bool s_hardwareS3tc;
void InitTexture()
{
#ifdef __EMSCRIPTEN__
s_hardwareS3tc = emscripten_webgl_enable_extension( emscripten_webgl_get_current_context(), "WEBGL_compressed_texture_s3tc" );
#else
s_hardwareS3tc = false;
GLint num;
glGetIntegerv( GL_NUM_EXTENSIONS, &num );
for( GLint i=0; i<num; i++ )
{
auto ext = (const char*)glGetStringi( GL_EXTENSIONS, GLuint( i ) );
if( strcmp( ext, "GL_EXT_texture_compression_s3tc" ) == 0 )
{
s_hardwareS3tc = true;
break;
}
}
#endif
}
void* MakeTexture()
{
GLuint tex;
@ -36,7 +59,10 @@ void UpdateTexture( void* _tex, const char* data, int w, int h )
{
auto tex = (GLuint)(intptr_t)_tex;
glBindTexture( GL_TEXTURE_2D, tex );
glCompressedTexImage2D( GL_TEXTURE_2D, 0, COMPRESSED_RGB_S3TC_DXT1_EXT, w, h, 0, w * h / 2, data );
if( s_hardwareS3tc )
{
glCompressedTexImage2D( GL_TEXTURE_2D, 0, COMPRESSED_RGB_S3TC_DXT1_EXT, w, h, 0, w * h / 2, data );
}
}
void UpdateTextureRGBA( void* _tex, void* data, int w, int h )

1
server/TracyTexture.hpp
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@ -6,6 +6,7 @@
namespace tracy
{
void InitTexture();
void* MakeTexture();
void FreeTexture( void* tex, void(*runOnMainThread)(std::function<void()>, bool) );
void UpdateTexture( void* tex, const char* data, int w, int h );