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Avoid creating MRT shaders when GL doesn't support MRT.

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This commit is contained in:
bkaradzic 2014-04-19 18:16:26 -07:00
parent dbbaa6ec90
commit a9b07870d5
3 changed files with 103 additions and 80 deletions
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174
src/bgfx.cpp
View file

@ -508,7 +508,7 @@ namespace bgfx
BX_CHECK(false, "You should not be here!");
}
for (uint32_t ii = 0; ii < BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS; ++ii)
for (uint32_t ii = 0, num = g_caps.maxFBAttachments; ii < num; ++ii)
{
ShaderHandle fsh = createShader(fragMem[ii]);
m_program[ii] = createProgram(vsh, fsh);
@ -539,7 +539,11 @@ namespace bgfx
{
for (uint32_t ii = 0; ii < BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS; ++ii)
{
destroyProgram(m_program[ii]);
if (isValid(m_program[ii]) )
{
destroyProgram(m_program[ii]);
m_program[ii].idx = invalidHandle;
}
}
destroyIndexBuffer(m_ib);
s_ctx->destroyTransientVertexBuffer(m_vb);
@ -722,51 +726,6 @@ namespace bgfx
#endif // BGFX_CONFIG_RENDERER_
}
struct CapsFlags
{
uint64_t m_flag;
const char* m_str;
};
static const CapsFlags s_capsFlags[] =
{
#define CAPS_FLAGS(_x) { _x, #_x }
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_BC1),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_BC2),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_BC3),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_BC4),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_BC5),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_ETC1),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_ETC2),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_ETC2A),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_ETC2A1),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC12),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC14),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC14A),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC12A),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC22),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC24),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D16),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D24),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D24S8),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D32),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D16F),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D24F),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D32F),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D0S8),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_COMPARE_LEQUAL),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_COMPARE_ALL),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_3D),
CAPS_FLAGS(BGFX_CAPS_VERTEX_ATTRIB_HALF),
CAPS_FLAGS(BGFX_CAPS_INSTANCING),
CAPS_FLAGS(BGFX_CAPS_RENDERER_MULTITHREADED),
CAPS_FLAGS(BGFX_CAPS_FRAGMENT_DEPTH),
CAPS_FLAGS(BGFX_CAPS_BLEND_INDEPENDENT),
#undef CAPS_FLAGS
};
void init(CallbackI* _callback, bx::ReallocatorI* _allocator)
{
BX_TRACE("Init...");
@ -806,38 +765,6 @@ namespace bgfx
s_ctx = BX_ALIGNED_NEW(g_allocator, 16, Context);
s_ctx->init();
const uint64_t emulatedCaps = 0
| BGFX_CAPS_TEXTURE_FORMAT_BC1
| BGFX_CAPS_TEXTURE_FORMAT_BC2
| BGFX_CAPS_TEXTURE_FORMAT_BC3
| BGFX_CAPS_TEXTURE_FORMAT_BC4
| BGFX_CAPS_TEXTURE_FORMAT_BC5
| BGFX_CAPS_TEXTURE_FORMAT_ETC1
| BGFX_CAPS_TEXTURE_FORMAT_ETC2
| BGFX_CAPS_TEXTURE_FORMAT_ETC2A
| BGFX_CAPS_TEXTURE_FORMAT_ETC2A1
;
g_caps.emulated |= emulatedCaps ^ (g_caps.supported & emulatedCaps);
BX_TRACE("Supported capabilities (" BGFX_RENDERER_NAME "):");
for (uint32_t ii = 0; ii < BX_COUNTOF(s_capsFlags); ++ii)
{
if (0 != (g_caps.supported & s_capsFlags[ii].m_flag) )
{
BX_TRACE("\t%s", s_capsFlags[ii].m_str);
}
}
BX_TRACE("Emulated capabilities:");
for (uint32_t ii = 0; ii < BX_COUNTOF(s_capsFlags); ++ii)
{
if (0 != (g_caps.emulated & s_capsFlags[ii].m_flag) )
{
BX_TRACE("\t%s", s_capsFlags[ii].m_str);
}
}
BX_TRACE("Init complete.");
}
@ -939,6 +866,74 @@ namespace bgfx
write(_marker, num);
}
struct CapsFlags
{
uint64_t m_flag;
const char* m_str;
};
static const CapsFlags s_capsFlags[] =
{
#define CAPS_FLAGS(_x) { _x, #_x }
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_BC1),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_BC2),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_BC3),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_BC4),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_BC5),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_ETC1),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_ETC2),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_ETC2A),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_ETC2A1),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC12),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC14),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC14A),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC12A),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC22),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_PTC24),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D16),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D24),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D24S8),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D32),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D16F),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D24F),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D32F),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_FORMAT_D0S8),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_COMPARE_LEQUAL),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_COMPARE_ALL),
CAPS_FLAGS(BGFX_CAPS_TEXTURE_3D),
CAPS_FLAGS(BGFX_CAPS_VERTEX_ATTRIB_HALF),
CAPS_FLAGS(BGFX_CAPS_INSTANCING),
CAPS_FLAGS(BGFX_CAPS_RENDERER_MULTITHREADED),
CAPS_FLAGS(BGFX_CAPS_FRAGMENT_DEPTH),
CAPS_FLAGS(BGFX_CAPS_BLEND_INDEPENDENT),
#undef CAPS_FLAGS
};
static void dumpCaps()
{
BX_TRACE("Supported capabilities (" BGFX_RENDERER_NAME "):");
for (uint32_t ii = 0; ii < BX_COUNTOF(s_capsFlags); ++ii)
{
if (0 != (g_caps.supported & s_capsFlags[ii].m_flag) )
{
BX_TRACE("\t%s", s_capsFlags[ii].m_str);
}
}
BX_TRACE("Emulated capabilities:");
for (uint32_t ii = 0; ii < BX_COUNTOF(s_capsFlags); ++ii)
{
if (0 != (g_caps.emulated & s_capsFlags[ii].m_flag) )
{
BX_TRACE("\t%s", s_capsFlags[ii].m_str);
}
}
BX_TRACE("Max FB attachments: %d", g_caps.maxFBAttachments);
}
void Context::init()
{
BX_CHECK(!m_rendererInitialized, "Already initialized?");
@ -983,9 +978,28 @@ namespace bgfx
m_declRef.init();
getCommandBuffer(CommandBuffer::RendererInit);
frameNoRenderWait();
getCommandBuffer(CommandBuffer::RendererInit);
// Make sure renderer init is called from render thread.
// g_caps is initialized and available after this point.
frame();
const uint64_t emulatedCaps = 0
| BGFX_CAPS_TEXTURE_FORMAT_BC1
| BGFX_CAPS_TEXTURE_FORMAT_BC2
| BGFX_CAPS_TEXTURE_FORMAT_BC3
| BGFX_CAPS_TEXTURE_FORMAT_BC4
| BGFX_CAPS_TEXTURE_FORMAT_BC5
| BGFX_CAPS_TEXTURE_FORMAT_ETC1
| BGFX_CAPS_TEXTURE_FORMAT_ETC2
| BGFX_CAPS_TEXTURE_FORMAT_ETC2A
| BGFX_CAPS_TEXTURE_FORMAT_ETC2A1
;
g_caps.emulated |= emulatedCaps ^ (g_caps.supported & emulatedCaps);
dumpCaps();
m_textVideoMemBlitter.init();
m_clearQuad.init();

8
src/bgfx_p.h
View file

@ -455,6 +455,14 @@ namespace bgfx
struct ClearQuad
{
ClearQuad()
{
for (uint32_t ii = 0; ii < BX_COUNTOF(m_program); ++ii)
{
m_program[ii].idx = invalidHandle;
}
}
void init();
void shutdown();
void clear(const Rect& _rect, const Clear& _clear, uint32_t _height = 0);

1
src/renderer_gl.cpp
View file

@ -2754,6 +2754,7 @@ namespace bgfx
if (usesTextureLod)
{
writeString(&writer, "#version 120\n");
if (m_type == GL_FRAGMENT_SHADER)
{
writeString(&writer, "#extension GL_ARB_shader_texture_lod : enable\n");