mrq/GLdc
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Implement a fast path for glDrawElements

Browse Source
This commit is contained in:
Luke Benstead 2019-11-27 20:08:29 +00:00
parent 140eec3d92
commit cdfb805dd9
1 changed files with 39 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
GL/draw.c
View File

@ -978,9 +978,37 @@ static void generate(SubmissionTarget* target, const GLenum mode, const GLsizei
Vertex* vertices = _glSubmissionTargetStart(target);
VertexExtra* extras = aligned_vector_at(target->extras, 0);
if(FAST_PATH_ENABLED) {
typedef struct FastPath {
float xyz[3];
float uv[2];
uint32_t argb;
} FastPath;
GLboolean readST = doTexture && doMultitexture;
ITERATE(count) {
j = indexFunc(idx);
vertices->flags = PVR_CMD_VERTEX;
FastPath* srcV = (FastPath*) ((uint8_t*) VERTEX_POINTER.ptr + (VERTEX_POINTER.stride * j));
FastPath* dst = (FastPath*) &vertices->xyz;
*dst = *srcV;
if(doLighting) _readNormalData(j, 1, extras);
if(readST) _readSTData(j, 1, extras);
++vertices;
++extras;
idx += istride;
}
} else {
ITERATE(count) {
j = indexFunc(idx);
vertices->flags = PVR_CMD_VERTEX;
_readPositionData(j, 1, vertices);
_readDiffuseData(j, 1, vertices);
if(doTexture) _readUVData(j, 1, vertices);
@ -992,14 +1020,9 @@ static void generate(SubmissionTarget* target, const GLenum mode, const GLsizei
idx += istride;
}
Vertex* it = _glSubmissionTargetStart(target);
const Vertex* end = _glSubmissionTargetEnd(target);
while(it < end) {
(it++)->flags = PVR_CMD_VERTEX;
}
it = _glSubmissionTargetStart(target);
Vertex* it = _glSubmissionTargetStart(target);
// Drawing arrays
switch(mode) {
case GL_TRIANGLES: