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GLES2 translator: fix point rendering

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if points are rendered the built in shader variable gl_PointSize should be active.
added a call to enable VERTEX_PROGRAM_POINT_SIZE to signal opengl to activate this variable
GL_POINT_SPRITE should also be enabled when rendering points

Change-Id: Iba7f62844ee2208ae22700b985aef0229d75fc46
This commit is contained in:
Liran
2011-07-05 08:27:41 +03:00
committed by Yochai Shefi Simchon
parent a24932259f
commit addc68e9f5
2 changed files with 28 additions and 0 deletions
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26
tools/emulator/opengl/host/libs/Translator/GLES_V2/GLESv2Imp.cpp
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@@ -26,6 +26,7 @@
#include <GLES2/gl2ext.h>
#include <GLcommon/TranslatorIfaces.h>
#include <GLcommon/ThreadInfo.h>
#include <GLcommon/gldefs.h>
#include "GLESv2Context.h"
#include "GLESv2Validate.h"
#include "ShaderParser.h"
@@ -453,7 +454,20 @@ GL_APICALL void GL_APIENTRY glDrawArrays(GLenum mode, GLint first, GLsizei coun
GLESConversionArrays tmpArrs;
ctx->setupArraysPointers(tmpArrs,first,count,0,NULL,true);
//Enable texture generation for GL_POINTS and gl_PointSize shader variable
//GLES2 assumes this is enabled by default, we need to set this state for GL
if (mode==GL_POINTS) {
ctx->dispatcher().glEnable(GL_POINT_SPRITE);
ctx->dispatcher().glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
}
ctx->dispatcher().glDrawArrays(mode,first,count);
if (mode==GL_POINTS) {
ctx->dispatcher().glDisable(GL_VERTEX_PROGRAM_POINT_SIZE);
ctx->dispatcher().glDisable(GL_POINT_SPRITE);
}
}
GL_APICALL void GL_APIENTRY glDrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid* elementsIndices){
@@ -469,7 +483,19 @@ GL_APICALL void GL_APIENTRY glDrawElements(GLenum mode, GLsizei count, GLenum t
GLESConversionArrays tmpArrs;
ctx->setupArraysPointers(tmpArrs,0,count,type,indices,false);
//See glDrawArrays
if (mode==GL_POINTS) {
ctx->dispatcher().glEnable(GL_POINT_SPRITE);
ctx->dispatcher().glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
}
ctx->dispatcher().glDrawElements(mode,count,type,indices);
if (mode==GL_POINTS) {
ctx->dispatcher().glDisable(GL_VERTEX_PROGRAM_POINT_SIZE);
ctx->dispatcher().glDisable(GL_POINT_SPRITE);
}
}
GL_APICALL void GL_APIENTRY glEnable(GLenum cap){

2
tools/emulator/opengl/host/libs/Translator/include/GLcommon/gldefs.h
View File

@@ -25,3 +25,5 @@ typedef double GLdouble; /* double precision float */
#define GL_INT 0x1404
#define GL_HALF_FLOAT_NV 0x140B
#define GL_HALF_FLOAT 0x140B
#define GL_VERTEX_PROGRAM_POINT_SIZE 0x8642
#define GL_POINT_SPRITE 0x8861