Fixed MRT clear color.

src/image.cpp

@@ -1894,7 +1894,7 @@ namespace bgfx
 		{ KTX_RG32UI,                                   KTX_ZERO,                                       KTX_RG,                                       KTX_UNSIGNED_INT,                 }, // RG32U
 		{ KTX_RG32F,                                    KTX_ZERO,                                       KTX_RG,                                       KTX_FLOAT,                        }, // RG32F
 		{ KTX_RGB9_E5,                                  KTX_ZERO,                                       KTX_RGB,                                      KTX_UNSIGNED_INT_5_9_9_9_REV,     }, // RGB9E5F
-		{ KTX_RGBA8,                                    KTX_SRGB8_ALPHA8,                               KTX_BGRA,                                     KTX_UNSIGNED_BYTE,                }, // BGRA8
+		{ KTX_BGRA,                                     KTX_SRGB8_ALPHA8,                               KTX_BGRA,                                     KTX_UNSIGNED_BYTE,                }, // BGRA8
 		{ KTX_RGBA8,                                    KTX_SRGB8_ALPHA8,                               KTX_RGBA,                                     KTX_UNSIGNED_BYTE,                }, // RGBA8
 		{ KTX_RGBA8I,                                   KTX_ZERO,                                       KTX_RGBA,                                     KTX_BYTE,                         }, // RGBA8I
 		{ KTX_RGBA8UI,                                  KTX_ZERO,                                       KTX_RGBA,                                     KTX_UNSIGNED_BYTE,                }, // RGBA8U
@@ -2475,7 +2475,6 @@ namespace bgfx
 		const float4_t umask  = float4_ild(0xff, 0xff00, 0xff0000, 0xff000000);
 		const float4_t wflip  = float4_ild(0, 0, 0, 0x80000000);
 		const float4_t wadd   = float4_ld(0.0f, 0.0f, 0.0f, 32768.0f*65536.0f);
-		const float4_t linear = float4_ld(2.2f, 2.2f, 2.2f, 1.0f);
 
 		for (uint32_t yy = 0, ystep = _pitch; yy < dstheight; ++yy, src += ystep)
 		{
@@ -2489,9 +2488,7 @@ namespace bgfx
 				const float4_t abgr0c = float4_add(abgr0f, wadd);
 				const float4_t abgr0n = float4_mul(abgr0c, unpack);
 
-				const float4_t abgr0l = float4_pow(abgr0n, linear);
-
-				float4_st(dst, abgr0l);
+				float4_st(dst, abgr0n);
 			}
 		}
 	}

src/renderer_d3d9.cpp

@@ -1925,30 +1925,34 @@ namespace bgfx { namespace d3d9
 				device->SetVertexShader(program.m_vsh->m_vertexShader);
 				device->SetPixelShader(program.m_fsh->m_pixelShader);
 
+				float mrtClear[BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS][4];
+
 				if (BGFX_CLEAR_COLOR_USE_PALETTE & _clear.m_flags)
 				{
-					float mrtClear[BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS][4];
 					for (uint32_t ii = 0; ii < numMrt; ++ii)
 					{
-						uint8_t index = (uint8_t)bx::uint32_min(BGFX_CONFIG_MAX_COLOR_PALETTE-1, _clear.m_index[ii]);
+						uint8_t index = (uint8_t)bx::uint32_min(BGFX_CONFIG_MAX_COLOR_PALETTE - 1, _clear.m_index[ii]);
 						memcpy(mrtClear[ii], _palette[index], 16);
 					}
-
-					DX_CHECK(m_device->SetPixelShaderConstantF(0, mrtClear[0], numMrt) );
 				}
 				else
 				{
 					float rgba[4] =
 					{
-						_clear.m_index[0]*1.0f/255.0f,
-						_clear.m_index[1]*1.0f/255.0f,
-						_clear.m_index[2]*1.0f/255.0f,
-						_clear.m_index[3]*1.0f/255.0f,
+						_clear.m_index[0] * 1.0f / 255.0f,
+						_clear.m_index[1] * 1.0f / 255.0f,
+						_clear.m_index[2] * 1.0f / 255.0f,
+						_clear.m_index[3] * 1.0f / 255.0f,
 					};
 
-					DX_CHECK(m_device->SetPixelShaderConstantF(0, rgba, 1) );
+					for (uint32_t ii = 0; ii < numMrt; ++ii)
+					{
+						memcpy(mrtClear[ii], rgba, 16);
+					}
 				}
 
+				DX_CHECK(device->SetPixelShaderConstantF(0, mrtClear[0], numMrt));
+
 				DX_CHECK(device->SetStreamSource(0, vb.m_ptr, 0, stride) );
 				DX_CHECK(device->SetStreamSourceFreq(0, 1) );
 				DX_CHECK(device->SetStreamSource(1, NULL, 0, 0) );

src/renderer_gl.cpp

@@ -3171,29 +3171,34 @@ namespace bgfx { namespace gl
 				GL_CHECK(glUseProgram(program.m_id) );
 				program.bindAttributes(vertexDecl, 0);
 
+				float mrtClear[BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS][4];
+
 				if (BGFX_CLEAR_COLOR_USE_PALETTE & _clear.m_flags)
 				{
-					float mrtClear[BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS][4];
 					for (uint32_t ii = 0; ii < numMrt; ++ii)
 					{
 						uint8_t index = (uint8_t)bx::uint32_min(BGFX_CONFIG_MAX_COLOR_PALETTE-1, _clear.m_index[ii]);
 						memcpy(mrtClear[ii], _palette[index], 16);
 					}
-
-					GL_CHECK(glUniform4fv(0, numMrt, mrtClear[0]) );
 				}
 				else
 				{
 					float rgba[4] =
 					{
-						_clear.m_index[0]*1.0f/255.0f,
-						_clear.m_index[1]*1.0f/255.0f,
-						_clear.m_index[2]*1.0f/255.0f,
-						_clear.m_index[3]*1.0f/255.0f,
+						_clear.m_index[0] * 1.0f / 255.0f,
+						_clear.m_index[1] * 1.0f / 255.0f,
+						_clear.m_index[2] * 1.0f / 255.0f,
+						_clear.m_index[3] * 1.0f / 255.0f,
 					};
-					GL_CHECK(glUniform4fv(0, 1, rgba) );
+
+					for (uint32_t ii = 0; ii < numMrt; ++ii)
+					{
+						memcpy(mrtClear[ii], rgba, 16);
+					}
 				}
 
+				GL_CHECK(glUniform4fv(0, numMrt, mrtClear[0]) );
+
 				GL_CHECK(glDrawArrays(GL_TRIANGLE_STRIP
 					, 0
 					, 4