Fix gl_FragData[u_index] test in OpenGL ES 3.x context
The test is valid if GL_EXT_draw_buffers or GL_NV_draw_buffers
is supported
Affects:
dEQP-GLES3.functional.shaders.fragdata.draw_buffers
Components: OpenGL
VK-GL-CTS issue: 1168
Change-Id: I44b41330ca37614920ed1cb0d6d021a8bc1e0fa3
diff --git a/modules/gles3/functional/es3fShaderFragDataTests.cpp b/modules/gles3/functional/es3fShaderFragDataTests.cpp
index 46063c3..dd0e578 100644
--- a/modules/gles3/functional/es3fShaderFragDataTests.cpp
+++ b/modules/gles3/functional/es3fShaderFragDataTests.cpp
@@ -61,6 +61,24 @@
INDEX_EXPR_TYPE_LAST
};
+static bool isExtensionSupported (const glu::RenderContext& renderCtx, const std::string& extension)
+{
+ const glw::Functions& gl = renderCtx.getFunctions();
+ int numExts = 0;
+
+ gl.getIntegerv(GL_NUM_EXTENSIONS, &numExts);
+
+ for (int ndx = 0; ndx < numExts; ndx++)
+ {
+ const char* curExt = (const char*)gl.getStringi(GL_EXTENSIONS, ndx);
+
+ if (extension == curExt)
+ return true;
+ }
+
+ return false;
+}
+
static bool compareSingleColor (tcu::TestLog& log, const tcu::Surface& surface, tcu::RGBA expectedColor, tcu::RGBA threshold)
{
const int maxPrints = 10;
@@ -227,7 +245,12 @@
IterateResult iterate (void)
{
- const glu::RenderContext& renderCtx = m_context.getRenderContext();
+ const glu::RenderContext& renderCtx = m_context.getRenderContext();
+
+ int num_test_attachment = 2;
+ if(!isExtensionSupported(renderCtx, "GL_EXT_draw_buffers") && !isExtensionSupported(renderCtx, "GL_NV_draw_buffers"))
+ num_test_attachment = 1;
+
const glu::ShaderProgram program (renderCtx, glu::ProgramSources()
<< glu::VertexSource(
"attribute highp vec4 a_position;\n"
@@ -281,7 +304,7 @@
throw tcu::NotSupportedError("Dynamic indexing of gl_FragData[] not supported");
gl.bindFramebuffer(GL_FRAMEBUFFER, *fbo);
- for (int ndx = 0; ndx < 2; ndx++)
+ for (int ndx = 0; ndx < num_test_attachment; ndx++)
{
const deUint32 rbo = ndx == 0 ? *colorBuf0 : *colorBuf1;
@@ -304,7 +327,7 @@
bool allOk = true;
const tcu::RGBA threshold = renderCtx.getRenderTarget().getPixelFormat().getColorThreshold() + tcu::RGBA(1,1,1,1);
- for (int ndx = 0; ndx < 2; ndx++)
+ for (int ndx = 0; ndx < num_test_attachment; ndx++)
{
gl.clearBufferfv(GL_COLOR, 0, tcu::RGBA::red().toVec().getPtr());
gl.clearBufferfv(GL_COLOR, 1, tcu::RGBA::red().toVec().getPtr());
