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Patching GL shaders to avoid compiler warnings.

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This commit is contained in:
Branimir Karadžić 2015-05-30 10:07:07 -07:00
parent b854588861
commit 5d22798482
1 changed files with 43 additions and 1 deletions
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44
src/renderer_gl.cpp
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@ -4337,7 +4337,10 @@ namespace bgfx { namespace gl
bool usesIUsamplers = !!bx::findIdentifierMatch(code, s_uisamplers);
uint32_t version = usesIUsamplers ? 130 : (usesTextureLod ? 120 : 0);
uint32_t version = usesIUsamplers
? 130
: (usesTextureLod ? 120 : 0)
;
if (0 != version)
{
@ -4352,6 +4355,44 @@ namespace bgfx { namespace gl
}
}
if (130 <= version)
{
if (m_type == GL_FRAGMENT_SHADER)
{
writeString(&writer, "#define varying in\n");
}
else
{
writeString(&writer, "#define attribute in\n");
writeString(&writer, "#define varying out\n");
}
uint32_t fragData = 0;
if (!!bx::findIdentifierMatch(code, "gl_FragData") )
{
for (uint32_t ii = 0, num = g_caps.maxFBAttachments; ii < num; ++ii)
{
char tmpFragData[16];
bx::snprintf(tmpFragData, BX_COUNTOF(tmpFragData), "gl_FragData[%d]", ii);
fragData = bx::uint32_max(fragData, NULL == strstr(code, tmpFragData) ? 0 : ii+1);
}
BGFX_FATAL(0 != fragData, Fatal::InvalidShader, "Unable to find and patch gl_FragData!");
}
if (0 != fragData)
{
writeStringf(&writer, "out vec4 bgfx_FragData[%d];\n", fragData);
writeString(&writer, "#define gl_FragData bgfx_FragData\n");
}
else
{
writeString(&writer, "out vec4 bgfx_FragColor;\n");
writeString(&writer, "#define gl_FragColor bgfx_FragColor\n");
}
}
writeString(&writer
, "#define lowp\n"
"#define mediump\n"
@ -4462,6 +4503,7 @@ namespace bgfx { namespace gl
code = temp;
}
BX_TRACE("%s", code);
GL_CHECK(glShaderSource(m_id, 1, (const GLchar**)&code, NULL) );
GL_CHECK(glCompileShader(m_id) );