Added DRAW_BUFFERx_EXT support to getIntegerv and related functions.
TRAC #22656
Signed-off-by: Nicolas Capens
Signed-off-by: Shannon Woods
Author: Jamie Madill
git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@2018 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/Context.cpp b/src/libGLESv2/Context.cpp
index c274091..be9510f 100644
--- a/src/libGLESv2/Context.cpp
+++ b/src/libGLESv2/Context.cpp
@@ -1263,6 +1263,22 @@
bool Context::getIntegerv(GLenum pname, GLint *params)
{
+ if (pname >= GL_DRAW_BUFFER0_EXT && pname <= GL_DRAW_BUFFER15_EXT)
+ {
+ unsigned int colorAttachment = (pname - GL_DRAW_BUFFER0_EXT);
+
+ if (colorAttachment >= mRenderer->getMaxRenderTargets())
+ {
+ // return true to stop further operation in the parent call
+ return gl::error(GL_INVALID_OPERATION, true);
+ }
+
+ Framebuffer *framebuffer = getDrawFramebuffer();
+
+ *params = framebuffer->getDrawBufferState(colorAttachment);
+ return true;
+ }
+
// Please note: DEPTH_CLEAR_VALUE is not included in our internal getIntegerv implementation
// because it is stored as a float, despite the fact that the GL ES 2.0 spec names
// GetIntegerv as its native query function. As it would require conversion in any
@@ -1279,6 +1295,7 @@
case GL_MAX_FRAGMENT_UNIFORM_VECTORS: *params = mRenderer->getMaxFragmentUniformVectors(); break;
case GL_MAX_RENDERBUFFER_SIZE: *params = getMaximumRenderbufferDimension(); break;
case GL_MAX_COLOR_ATTACHMENTS_EXT: *params = mRenderer->getMaxRenderTargets(); break;
+ case GL_MAX_DRAW_BUFFERS_EXT: *params = mRenderer->getMaxRenderTargets(); break;
case GL_NUM_SHADER_BINARY_FORMATS: *params = 0; break;
case GL_SHADER_BINARY_FORMATS: /* no shader binary formats are supported */ break;
case GL_ARRAY_BUFFER_BINDING: *params = mState.arrayBuffer.id(); break;
@@ -1509,6 +1526,13 @@
bool Context::getQueryParameterInfo(GLenum pname, GLenum *type, unsigned int *numParams)
{
+ if (pname >= GL_DRAW_BUFFER0_EXT && pname <= GL_DRAW_BUFFER15_EXT)
+ {
+ *type = GL_INT;
+ *numParams = 1;
+ return true;
+ }
+
// Please note: the query type returned for DEPTH_CLEAR_VALUE in this implementation
// is FLOAT rather than INT, as would be suggested by the GL ES 2.0 spec. This is due
// to the fact that it is stored internally as a float, and so would require conversion
@@ -1539,6 +1563,7 @@
case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
case GL_MAX_RENDERBUFFER_SIZE:
case GL_MAX_COLOR_ATTACHMENTS_EXT:
+ case GL_MAX_DRAW_BUFFERS_EXT:
case GL_NUM_SHADER_BINARY_FORMATS:
case GL_NUM_COMPRESSED_TEXTURE_FORMATS:
case GL_ARRAY_BUFFER_BINDING:
