thirdparty/ppsspp
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Align some vertex arrays to page size. It's said to possibly be beneficial.

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This commit is contained in:
Henrik Rydgard 2013-01-29 00:48:13 +01:00
parent 630c025fd5
commit 366583d34f
5 changed files with 41 additions and 39 deletions
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29
GPU/GLES/TransformPipeline.cpp
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@ -17,6 +17,7 @@
#include "base/timeutil.h"
#include "Common/MemoryUtil.h"
#include "../../Core/MemMap.h"
#include "../../Core/Host.h"
#include "../../Core/System.h"
@ -45,6 +46,12 @@ const GLuint glprim[8] = {
GL_TRIANGLES, // With OpenGL ES we have to expand sprites into triangles, tripling the data instead of doubling. sigh. OpenGL ES, Y U NO SUPPORT GL_QUADS?
};
enum {
DECODED_VERTEX_BUFFER_SIZE = 65536 * 48,
DECODED_INDEX_BUFFER_SIZE = 65536 * 2,
TRANSFORMED_VERTEX_BUFFER_SIZE = 65536 * sizeof(TransformedVertex)
};
TransformDrawEngine::TransformDrawEngine()
: numDrawCalls(0),
collectedVerts(0),
@ -52,10 +59,13 @@ TransformDrawEngine::TransformDrawEngine()
lastVType_(-1),
curVbo_(0),
shaderManager_(0) {
decoded = new u8[65536 * 48];
decIndex = new u16[65536];
transformed = new TransformedVertex[65536];
transformedExpanded = new TransformedVertex[65536 * 3];
// Allocate nicely aligned memory. Maybe graphics drivers will
// appreciate it.
// All this is a LOT of memory, need to see if we can cut down somehow.
decoded = (u8 *)AllocateMemoryPages(DECODED_VERTEX_BUFFER_SIZE);
decIndex = (u16 *)AllocateMemoryPages(DECODED_INDEX_BUFFER_SIZE);
transformed = (TransformedVertex *)AllocateMemoryPages(TRANSFORMED_VERTEX_BUFFER_SIZE);
transformedExpanded = (TransformedVertex *)AllocateMemoryPages(3 * TRANSFORMED_VERTEX_BUFFER_SIZE);
memset(vbo_, 0, sizeof(vbo_));
memset(ebo_, 0, sizeof(ebo_));
indexGen.Setup(decIndex);
@ -65,10 +75,10 @@ TransformDrawEngine::TransformDrawEngine()
TransformDrawEngine::~TransformDrawEngine() {
DestroyDeviceObjects();
delete [] decoded;
delete [] decIndex;
delete [] transformed;
delete [] transformedExpanded;
FreeMemoryPages(decoded, DECODED_VERTEX_BUFFER_SIZE);
FreeMemoryPages(decIndex, DECODED_INDEX_BUFFER_SIZE);
FreeMemoryPages(transformed, TRANSFORMED_VERTEX_BUFFER_SIZE);
FreeMemoryPages(transformedExpanded, 3 * TRANSFORMED_VERTEX_BUFFER_SIZE);
unregister_gl_resource_holder(this);
}
@ -293,7 +303,7 @@ struct GlTypeInfo {
GLboolean normalized;
};
const GlTypeInfo GLComp[8] = {
const GlTypeInfo GLComp[] = {
{0}, // DEC_NONE,
{GL_FLOAT, 1, GL_FALSE}, // DEC_FLOAT_1,
{GL_FLOAT, 2, GL_FALSE}, // DEC_FLOAT_2,
@ -302,6 +312,7 @@ const GlTypeInfo GLComp[8] = {
{GL_BYTE, 4, GL_TRUE}, // DEC_S8_3,
{GL_SHORT, 4, GL_TRUE},// DEC_S16_3,
{GL_UNSIGNED_BYTE, 4, GL_TRUE},// DEC_U8_4,
{GL_UNSIGNED_BYTE, 3, GL_TRUE},// DEC_U8_3,
};
static inline void VertexAttribSetup(int attrib, int fmt, int stride, u8 *ptr) {