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Remove conditional header sending, it's slightly slower

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This commit is contained in:
Luke Benstead 2018-08-20 20:34:11 +01:00
parent da97483eee
commit 80c65d4aff
1 changed files with 6 additions and 45 deletions
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51
GL/draw.c
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@ -752,13 +752,6 @@ typedef struct {
static void push(const AlignedVector* vertices, PolyList* activePolyList, GLshort textureUnit) { static void push(const AlignedVector* vertices, PolyList* activePolyList, GLshort textureUnit) {
/* Copy the vertices to the active poly list */ /* Copy the vertices to the active poly list */
static GLuint LIST_COUNTER = 0;
static ListToHeader LAST_HEADERS[MAX_LISTS];
/* If the list was empty, this is the first submission this frame so we
* always send the header in this case */
GLboolean listWasEmpty = activePolyList->vector.size > 0;
// Make room for the element + the header // Make room for the element + the header
PVRCommand* dst = (PVRCommand*) aligned_vector_extend(&activePolyList->vector, vertices->size); PVRCommand* dst = (PVRCommand*) aligned_vector_extend(&activePolyList->vector, vertices->size);
@ -773,45 +766,13 @@ static void push(const AlignedVector* vertices, PolyList* activePolyList, GLshor
pvr_poly_compile(hdr, &cxt); pvr_poly_compile(hdr, &cxt);
/* We store a list of the last "hdr" to be submitted for a list, and then compare before // Point dest at the first new vertex to populate, if we're not sending a header
* specifying another one. Apparently it's quite slow to change header // we won't increment and instead overwrite the header we just created with the
*/ // first vertex
dst++;
GLuint c; // Add one more to the list
GLboolean sendHeader = GL_FALSE; aligned_vector_extend(&activePolyList->vector, 1);
GLboolean listFound = GL_FALSE;
for(c = 0; c < LIST_COUNTER; ++c) {
if(LAST_HEADERS[c].list_type == activePolyList->list_type) {
/* Send the header if this was the first submission to this list, or the header has changed since
* the last sent */
sendHeader = listWasEmpty || memcmp(&LAST_HEADERS[c].hdr, &hdr, sizeof(pvr_poly_hdr_t)) != 0;
listFound = GL_TRUE;
break;
}
}
if(!listFound) {
if(LIST_COUNTER == MAX_LISTS) {
fprintf(stderr, "Ran out of space!\n");
}
/* First time we've seen this list, add it to the array */
LAST_HEADERS[LIST_COUNTER].list_type = activePolyList->list_type;
LAST_HEADERS[LIST_COUNTER++].hdr = *hdr;
/* Send the header the first time */
sendHeader = GL_TRUE;
}
if(sendHeader) {
// Point dest at the first new vertex to populate, if we're not sending a header
// we won't increment and instead overwrite the header we just created with the
// first vertex
dst++;
// Add one more to the list
aligned_vector_extend(&activePolyList->vector, 1);
}
GLsizei i = vertices->size; GLsizei i = vertices->size;
ClipVertex* vin = aligned_vector_at(vertices, 0); ClipVertex* vin = aligned_vector_at(vertices, 0);