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OpenGL: Minor gles2 fixes

This commit is contained in:
Jeffrey Pfau 2015-11-08 15:30:23 -08:00
parent ad3ec31f73
commit ac481d0c1b
1 changed files with 11 additions and 4 deletions
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9
src/platform/opengl/gles2.c
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@ -139,6 +139,7 @@ void _drawShader(struct GBAGLES2Shader* shader) {
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
} else {
glDisable(GL_BLEND);
glClear(GL_COLOR_BUFFER_BIT);
}
glGetIntegerv(GL_VIEWPORT, viewport);
@ -224,7 +225,6 @@ void _drawShader(struct GBAGLES2Shader* shader) {
}
}
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glBindTexture(GL_TEXTURE_2D, shader->tex);
glViewport(viewport[0], viewport[1], viewport[2], viewport[3]);
}
@ -241,6 +241,7 @@ void GBAGLES2ContextDrawFrame(struct VideoBackend* v) {
_drawShader(&context->shaders[n]);
}
_drawShader(&context->finalShader);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glUseProgram(0);
}
@ -313,13 +314,19 @@ void GBAGLES2ShaderInit(struct GBAGLES2Shader* shader, const char* vs, const cha
char log[1024];
glCompileShader(shader->fragmentShader);
glGetShaderInfoLog(shader->fragmentShader, 1024, 0, log);
if (log[0]) {
printf("%s\n", log);
}
glCompileShader(shader->vertexShader);
glGetShaderInfoLog(shader->vertexShader, 1024, 0, log);
if (log[0]) {
printf("%s\n", log);
}
glLinkProgram(shader->program);
glGetProgramInfoLog(shader->program, 1024, 0, log);
if (log[0]) {
printf("%s\n", log);
}
shader->texLocation = glGetUniformLocation(shader->program, "tex");
shader->positionLocation = glGetAttribLocation(shader->program, "position");