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ogl: reorder driver extensions checks

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This commit is contained in:
degasus 2013-09-02 13:14:45 +02:00
parent 2897619ddb
commit beb57d7fbd
1 changed files with 47 additions and 39 deletions
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86
Source/Plugins/Plugin_VideoOGL/Src/Render.cpp
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@ -385,22 +385,34 @@ Renderer::Renderer()
g_ogl_config.bSupportOGL31 = false;
g_ogl_config.eSupportedGLSLVersion = GLSLES3;
#else
GLint numvertexattribs = 0;
glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &numvertexattribs);
if (numvertexattribs < 16)
{
ERROR_LOG(VIDEO, "GPU: OGL ERROR: Number of attributes %d not enough.\n"
"GPU: Does your video card support OpenGL 2.x?",
numvertexattribs);
bSuccess = false;
}
#ifdef __APPLE__
glewExperimental = 1;
#endif
if (glewInit() != GLEW_OK)
{
ERROR_LOG(VIDEO, "glewInit() failed! Does your video card support OpenGL 2.x?");
return; // TODO: fail
PanicAlert("glewInit() failed! Does your video card support OpenGL 2.x?");
return;
}
// check for the max vertex attributes
GLint numvertexattribs = 0;
glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &numvertexattribs);
if (numvertexattribs < 16)
{
PanicAlert("GPU: OGL ERROR: Number of attributes %d not enough.\n"
"GPU: Does your video card support OpenGL 2.x?",
numvertexattribs);
bSuccess = false;
}
// check the max texture width and height
GLint max_texture_size;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, (GLint *)&max_texture_size);
if (max_texture_size < 1024)
{
PanicAlert("GL_MAX_TEXTURE_SIZE too small at %i - must be at least 1024.",
max_texture_size);
bSuccess = false;
}
#if defined(_DEBUG) || defined(DEBUGFAST)
@ -412,43 +424,49 @@ Renderer::Renderer()
}
#endif
if (!GLEW_EXT_secondary_color)
if (!GLEW_VERSION_2_0)
{
ERROR_LOG(VIDEO, "GPU: OGL ERROR: Need GL_EXT_secondary_color.\n"
"GPU: Does your video card support OpenGL 2.x?");
// OpenGL 2.0 is required for all shader based drawings. There is no way to get this by extensions
PanicAlert("GPU: OGL ERROR: Does your video card support OpenGL 2.0?");
bSuccess = false;
}
if (!GLEW_ARB_framebuffer_object)
{
ERROR_LOG(VIDEO, "GPU: ERROR: Need GL_ARB_framebuffer_object for multiple render targets.\n"
// We want the ogl3 framebuffer instead of the ogl2 one for better blitting support.
// It's also compatible with the gles3 one.
PanicAlert("GPU: ERROR: Need GL_ARB_framebuffer_object for multiple render targets.\n"
"GPU: Does your video card support OpenGL 3.0?");
bSuccess = false;
}
if (!GLEW_ARB_vertex_array_object)
{
ERROR_LOG(VIDEO, "GPU: OGL ERROR: Need GL_ARB_vertex_array_object.\n"
// This extension is used to replace lots of pointer setting function.
// Also gles3 requires to use it.
PanicAlert("GPU: OGL ERROR: Need GL_ARB_vertex_array_object.\n"
"GPU: Does your video card support OpenGL 3.0?");
bSuccess = false;
}
if (!GLEW_ARB_map_buffer_range)
{
ERROR_LOG(VIDEO, "GPU: OGL ERROR: Need GL_ARB_map_buffer_range.\n"
// ogl3 buffer mapping for better streaming support.
// The ogl2 one also isn't in gles3.
PanicAlert("GPU: OGL ERROR: Need GL_ARB_map_buffer_range.\n"
"GPU: Does your video card support OpenGL 3.0?");
bSuccess = false;
}
if (!GLEW_ARB_sampler_objects && bSuccess)
{
ERROR_LOG(VIDEO, "GPU: OGL ERROR: Need GL_ARB_sampler_objects."
"GPU: Does your video card support OpenGL 3.2?"
// Our sampler cache uses this extension. It could easyly be workaround and it's by far the
// highest requirement, but it seems that no driver lacks support for it.
PanicAlert("GPU: OGL ERROR: Need GL_ARB_sampler_objects."
"GPU: Does your video card support OpenGL 3.3?"
"Please report this issue, then there will be a workaround");
bSuccess = false;
}
if (!GLEW_ARB_texture_non_power_of_two)
WARN_LOG(VIDEO, "ARB_texture_non_power_of_two not supported.");
// OpenGL 3 doesn't provide GLES like float functions for depth.
// They are in core in OpenGL 4.1, so almost every driver should support them.
@ -459,9 +477,6 @@ Renderer::Renderer()
glClearDepthf = ClearDepthf;
}
if (!bSuccess)
return; // TODO: fail
g_Config.backend_info.bSupportsDualSourceBlend = GLEW_ARB_blend_func_extended;
g_Config.backend_info.bSupportsGLSLUBO = GLEW_ARB_uniform_buffer_object;
@ -478,7 +493,7 @@ Renderer::Renderer()
if(strstr(g_ogl_config.glsl_version, "1.00") || strstr(g_ogl_config.glsl_version, "1.10"))
{
ERROR_LOG(VIDEO, "GPU: OGL ERROR: Need at least GLSL 1.20\n"
PanicAlert("GPU: OGL ERROR: Need at least GLSL 1.20\n"
"GPU: Does your video card support OpenGL 2.1?\n"
"GPU: Your driver supports GLSL %s", g_ogl_config.glsl_version);
bSuccess = false;
@ -503,7 +518,13 @@ Renderer::Renderer()
{
g_ogl_config.eSupportedGLSLVersion = GLSL_150;
}
#endif
#endif
if (!bSuccess)
{
// Not all needed extensions are supported, so we have to stop here.
// Else some of the next calls might crash.
return;
}
glGetIntegerv(GL_MAX_SAMPLES, &g_ogl_config.max_samples);
if(g_ogl_config.max_samples < 1)
@ -550,16 +571,6 @@ Renderer::Renderer()
s_vsync = g_ActiveConfig.IsVSync();
GLInterface->SwapInterval(s_vsync);
// check the max texture width and height
GLint max_texture_size;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, (GLint *)&max_texture_size);
if (max_texture_size < 1024)
ERROR_LOG(VIDEO, "GL_MAX_TEXTURE_SIZE too small at %i - must be at least 1024.",
max_texture_size);
if (GL_REPORT_ERROR() != GL_NO_ERROR)
bSuccess = false;
// TODO: Move these somewhere else?
FramebufferManagerBase::SetLastXfbWidth(MAX_XFB_WIDTH);
FramebufferManagerBase::SetLastXfbHeight(MAX_XFB_HEIGHT);
@ -572,9 +583,6 @@ Renderer::Renderer()
// Because of the fixed framebuffer size we need to disable the resolution
// options while running
g_Config.bRunning = true;
if (GL_REPORT_ERROR() != GL_NO_ERROR)
bSuccess = false;
glStencilFunc(GL_ALWAYS, 0, 0);
glBlendFunc(GL_ONE, GL_ONE);