Fall back to drawing indexed points without indices in d3d9.
TRAC #22633
Signed-off-by: Jamie Madill
Signed-off-by: Shannon Woods
Author: Geoff Lang
git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1942 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/renderer/Renderer9.cpp b/src/libGLESv2/renderer/Renderer9.cpp
index 6fc3f6b..06e7bfb 100644
--- a/src/libGLESv2/renderer/Renderer9.cpp
+++ b/src/libGLESv2/renderer/Renderer9.cpp
@@ -1427,7 +1427,11 @@
{
startScene();
- if (mode == GL_LINE_LOOP)
+ if (mode == GL_POINTS)
+ {
+ drawIndexedPoints(count, type, indices, elementArrayBuffer);
+ }
+ else if (mode == GL_LINE_LOOP)
{
drawLineLoop(count, type, indices, indexInfo.minIndex, elementArrayBuffer);
}
@@ -1610,6 +1614,37 @@
mDevice->DrawIndexedPrimitive(D3DPT_LINESTRIP, -minIndex, minIndex, count, startIndex, count);
}
+template <typename T>
+static void drawPoints(IDirect3DDevice9* device, GLsizei count, const GLvoid *indices)
+{
+ for (int i = 0; i < count; i++)
+ {
+ unsigned int indexValue = static_cast<unsigned int>(static_cast<const T*>(indices)[i]);
+ device->DrawPrimitive(D3DPT_POINTLIST, indexValue, 1);
+ }
+}
+
+void Renderer9::drawIndexedPoints(GLsizei count, GLenum type, const GLvoid *indices, gl::Buffer *elementArrayBuffer)
+{
+ // Drawing index point lists is unsupported in d3d9, fall back to a regular DrawPrimitive call
+ // for each individual point. This call is not expected to happen often.
+
+ if (elementArrayBuffer)
+ {
+ BufferStorage *storage = elementArrayBuffer->getStorage();
+ intptr_t offset = reinterpret_cast<intptr_t>(indices);
+ indices = static_cast<const GLubyte*>(storage->getData()) + offset;
+ }
+
+ switch (type)
+ {
+ case GL_UNSIGNED_BYTE: drawPoints<GLubyte>(mDevice, count, indices); break;
+ case GL_UNSIGNED_SHORT: drawPoints<GLushort>(mDevice, count, indices); break;
+ case GL_UNSIGNED_INT: drawPoints<GLuint>(mDevice, count, indices); break;
+ default: UNREACHABLE();
+ }
+}
+
void Renderer9::applyShaders(gl::ProgramBinary *programBinary)
{
unsigned int programBinarySerial = programBinary->getSerial();
diff --git a/src/libGLESv2/renderer/Renderer9.h b/src/libGLESv2/renderer/Renderer9.h
index d247179..af76014 100644
--- a/src/libGLESv2/renderer/Renderer9.h
+++ b/src/libGLESv2/renderer/Renderer9.h
@@ -199,6 +199,7 @@
void applyUniformnbv(gl::Uniform *targetUniform, const GLint *v);
void drawLineLoop(GLsizei count, GLenum type, const GLvoid *indices, int minIndex, gl::Buffer *elementArrayBuffer);
+ void drawIndexedPoints(GLsizei count, GLenum type, const GLvoid *indices, gl::Buffer *elementArrayBuffer);
void getMultiSampleSupport(D3DFORMAT format, bool *multiSampleArray);
bool copyToRenderTarget(IDirect3DSurface9 *dest, IDirect3DSurface9 *source, bool fromManaged);