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https://github.com/ClassiCube/ClassiCube.git
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Dreamcast: Squeeze a bit more performance out of the system
This commit is contained in:
UnknownShadow200
parent
e57d0e2575
commit
064be092e8
234
third_party/gldc/src/sh4.c
vendored
234
third_party/gldc/src/sh4.c
vendored
@ -1,7 +1,6 @@
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#include "platform.h"
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#include "sh4.h"
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#define CLIP_DEBUG 0
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#define PVR_VERTEX_BUF_SIZE 2560 * 256
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@ -115,16 +114,18 @@ static inline void _glClipEdge(const Vertex* const v1, const Vertex* const v2, V
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#define SPAN_SORT_CFG 0x005F8030
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static volatile uint32_t* PVR_LMMODE0 = (uint32_t*) 0xA05F6884;
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static volatile uint32_t *PVR_LMMODE1 = (uint32_t*) 0xA05F6888;
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static volatile uint32_t *QACR = (uint32_t*) 0xFF000038;
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static volatile uint32_t* PVR_LMMODE1 = (uint32_t*) 0xA05F6888;
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static volatile uint32_t* QACR = (uint32_t*) 0xFF000038;
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#define V0_VIS (1 << 0)
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#define V1_VIS (1 << 1)
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#define V2_VIS (1 << 2)
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void SceneListSubmit(Vertex* v2, int n) {
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TRACE();
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/* You need at least a header, and 3 vertices to render anything */
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if(n < 4) {
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return;
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}
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if(n < 4) return;
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const float h = vid_mode->height;
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@ -146,7 +147,6 @@ void SceneListSubmit(Vertex* v2, int n) {
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fprintf(stderr, "----\n");
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#endif
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uint8_t visible_mask = 0;
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uint8_t counter = 0;
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sq = SQ_BASE_ADDRESS;
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@ -154,20 +154,11 @@ void SceneListSubmit(Vertex* v2, int n) {
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PREFETCH(v2 + 1);
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switch(v2->flags) {
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case GPU_CMD_VERTEX_EOL:
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if(counter < 2) {
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continue;
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}
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counter = 0;
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break;
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case GPU_CMD_VERTEX:
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++counter;
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if(counter < 3) {
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continue;
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}
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break;
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continue;
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default:
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_glPushHeaderOrVertex(v2);
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counter = 0;
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continue;
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};
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@ -177,12 +168,12 @@ void SceneListSubmit(Vertex* v2, int n) {
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visible_mask = (
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(v0->xyz[2] > -v0->w) << 0 |
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(v1->xyz[2] > -v1->w) << 1 |
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(v2->xyz[2] > -v2->w) << 2 |
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(counter == 0) << 3
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(v2->xyz[2] > -v2->w) << 2
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);
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Vertex __attribute__((aligned(32))) scratch[4];
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switch(visible_mask) {
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case 15: /* All visible, but final vertex in strip */
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case V0_VIS | V1_VIS | V2_VIS: /* All vertices visible */
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{
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_glPerspectiveDivideVertex(v0, h);
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_glPushHeaderOrVertex(v0);
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@ -194,90 +185,55 @@ void SceneListSubmit(Vertex* v2, int n) {
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_glPushHeaderOrVertex(v2);
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}
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break;
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case 7:
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/* All visible, push the first vertex and move on */
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case V0_VIS: /* First vertex was visible */
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{
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Vertex* a = &scratch[0];
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Vertex* b = &scratch[1];
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_glClipEdge(v0, v1, a);
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a->flags = GPU_CMD_VERTEX;
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_glClipEdge(v2, v0, b);
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b->flags = GPU_CMD_VERTEX_EOL;
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_glPerspectiveDivideVertex(v0, h);
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_glPushHeaderOrVertex(v0);
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break;
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case 9:
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/* First vertex was visible, last in strip */
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{
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Vertex __attribute__((aligned(32))) scratch[2];
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Vertex* a = &scratch[0];
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Vertex* b = &scratch[1];
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_glClipEdge(v0, v1, a);
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a->flags = GPU_CMD_VERTEX;
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_glPerspectiveDivideVertex(a, h);
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_glPushHeaderOrVertex(a);
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_glClipEdge(v2, v0, b);
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b->flags = GPU_CMD_VERTEX_EOL;
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_glPerspectiveDivideVertex(v0, h);
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_glPushHeaderOrVertex(v0);
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_glPerspectiveDivideVertex(a, h);
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_glPushHeaderOrVertex(a);
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_glPerspectiveDivideVertex(b, h);
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_glPushHeaderOrVertex(b);
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}
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break;
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case 1:
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/* First vertex was visible, but not last in strip */
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{
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Vertex __attribute__((aligned(32))) scratch[2];
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Vertex* a = &scratch[0];
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Vertex* b = &scratch[1];
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_glClipEdge(v0, v1, a);
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a->flags = GPU_CMD_VERTEX;
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_glClipEdge(v2, v0, b);
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b->flags = GPU_CMD_VERTEX;
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_glPerspectiveDivideVertex(v0, h);
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_glPushHeaderOrVertex(v0);
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_glPerspectiveDivideVertex(a, h);
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_glPushHeaderOrVertex(a);
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_glPerspectiveDivideVertex(b, h);
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_glPushHeaderOrVertex(b);
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_glPushHeaderOrVertex(b);
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}
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break;
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case 10:
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case 2:
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_glPerspectiveDivideVertex(b, h);
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_glPushHeaderOrVertex(b);
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}
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break;
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case V1_VIS: /* Second vertex was visible */
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{
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/* Second vertex was visible. In self case we need to create a triangle and produce
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two new vertices: 1-2, and 2-3. */
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{
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Vertex __attribute__((aligned(32))) scratch[3];
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Vertex* a = &scratch[0];
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Vertex* b = &scratch[1];
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Vertex* c = &scratch[2];
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Vertex* a = &scratch[0];
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Vertex* b = &scratch[1];
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Vertex* c = &scratch[2];
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memcpy_vertex(c, v1);
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memcpy_vertex(c, v1);
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_glClipEdge(v0, v1, a);
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a->flags = GPU_CMD_VERTEX;
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_glClipEdge(v0, v1, a);
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a->flags = GPU_CMD_VERTEX;
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_glClipEdge(v1, v2, b);
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b->flags = v2->flags;
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_glClipEdge(v1, v2, b);
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b->flags = GPU_CMD_VERTEX_EOL;
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_glPerspectiveDivideVertex(a, h);
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_glPushHeaderOrVertex(a);
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_glPerspectiveDivideVertex(a, h);
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_glPushHeaderOrVertex(a);
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_glPerspectiveDivideVertex(c, h);
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_glPushHeaderOrVertex(c);
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_glPerspectiveDivideVertex(c, h);
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_glPushHeaderOrVertex(c);
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_glPerspectiveDivideVertex(b, h);
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_glPushHeaderOrVertex(b);
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}
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break;
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case 11:
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case 3: /* First and second vertex were visible */
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_glPerspectiveDivideVertex(b, h);
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_glPushHeaderOrVertex(b);
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}
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break;
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case V0_VIS | V1_VIS: /* First and second vertex were visible */
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{
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Vertex __attribute__((aligned(32))) scratch[3];
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Vertex* a = &scratch[0];
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Vertex* b = &scratch[1];
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Vertex* c = &scratch[2];
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@ -291,7 +247,7 @@ void SceneListSubmit(Vertex* v2, int n) {
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_glPushHeaderOrVertex(v0);
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_glClipEdge(v1, v2, a);
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a->flags = v2->flags;
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a->flags = GPU_CMD_VERTEX_EOL;
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_glPerspectiveDivideVertex(c, h);
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_glPushHeaderOrVertex(c);
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@ -304,40 +260,32 @@ void SceneListSubmit(Vertex* v2, int n) {
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_glPushHeaderOrVertex(a);
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}
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break;
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case 12:
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case 4:
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/* Third vertex was visible. */
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{
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Vertex __attribute__((aligned(32))) scratch[3];
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Vertex* a = &scratch[0];
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Vertex* b = &scratch[1];
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Vertex* c = &scratch[2];
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memcpy_vertex(c, v2);
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_glClipEdge(v2, v0, a);
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a->flags = GPU_CMD_VERTEX;
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_glClipEdge(v1, v2, b);
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b->flags = GPU_CMD_VERTEX;
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_glPerspectiveDivideVertex(a, h);
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_glPushHeaderOrVertex(a);
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if(counter % 2 == 1) {
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_glPushHeaderOrVertex(a);
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}
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_glPerspectiveDivideVertex(b, h);
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_glPushHeaderOrVertex(b);
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_glPerspectiveDivideVertex(c, h);
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_glPushHeaderOrVertex(c);
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}
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break;
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case 13:
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case V2_VIS: /* Third vertex was visible */
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{
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Vertex* a = &scratch[0];
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Vertex* b = &scratch[1];
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Vertex* c = &scratch[2];
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memcpy_vertex(c, v2);
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_glClipEdge(v2, v0, a);
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a->flags = GPU_CMD_VERTEX;
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_glClipEdge(v1, v2, b);
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b->flags = GPU_CMD_VERTEX;
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_glPerspectiveDivideVertex(a, h);
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_glPushHeaderOrVertex(a);
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_glPerspectiveDivideVertex(b, h);
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_glPushHeaderOrVertex(b);
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_glPerspectiveDivideVertex(c, h);
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_glPushHeaderOrVertex(c);
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}
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break;
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case V0_VIS | V2_VIS: /* First and third vertex were visible */
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{
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Vertex __attribute__((aligned(32))) scratch[3];
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Vertex* a = &scratch[0];
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Vertex* b = &scratch[1];
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Vertex* c = &scratch[2];
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@ -366,39 +314,8 @@ void SceneListSubmit(Vertex* v2, int n) {
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_glPushHeaderOrVertex(c);
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}
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break;
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case 5: /* First and third vertex were visible */
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case V1_VIS | V2_VIS: /* Second and third vertex were visible */
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{
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Vertex __attribute__((aligned(32))) scratch[3];
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Vertex* a = &scratch[0];
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Vertex* b = &scratch[1];
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Vertex* c = &scratch[2];
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memcpy_vertex(c, v2);
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c->flags = GPU_CMD_VERTEX;
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_glClipEdge(v0, v1, a);
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a->flags = GPU_CMD_VERTEX;
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_glClipEdge(v1, v2, b);
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b->flags = GPU_CMD_VERTEX;
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_glPerspectiveDivideVertex(v0, h);
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_glPushHeaderOrVertex(v0);
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_glPerspectiveDivideVertex(a, h);
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_glPushHeaderOrVertex(a);
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_glPerspectiveDivideVertex(c, h);
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_glPushHeaderOrVertex(c);
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_glPerspectiveDivideVertex(b, h);
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_glPushHeaderOrVertex(b);
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_glPushHeaderOrVertex(c);
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}
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break;
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case 14:
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case 6: /* Second and third vertex were visible */
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{
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Vertex __attribute__((aligned(32))) scratch[4];
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Vertex* a = &scratch[0];
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Vertex* b = &scratch[1];
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Vertex* c = &scratch[2];
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@ -427,9 +344,6 @@ void SceneListSubmit(Vertex* v2, int n) {
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_glPushHeaderOrVertex(d);
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}
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break;
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case 8:
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default:
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break;
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}
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}
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6
third_party/gldc/src/sh4.h
vendored
6
third_party/gldc/src/sh4.h
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@ -62,8 +62,6 @@ GL_FORCE_INLINE void* memcpy_fast(void *dest, const void *src, size_t len) {
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#define MEMCPY4(dst, src, bytes) memcpy_fast(dst, src, bytes)
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#define MEMSET4(dst, v, size) memset4((dst), (v), (size))
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GL_FORCE_INLINE void TransformVertex(const float* xyz, const float* w, float* oxyz, float* ow) {
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register float __x __asm__("fr12") = (xyz[0]);
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register float __y __asm__("fr13") = (xyz[1]);
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@ -85,10 +83,6 @@ GL_FORCE_INLINE void TransformVertex(const float* xyz, const float* w, float* ox
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void InitGPU(_Bool autosort, _Bool fsaa);
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static inline size_t GPUMemoryAvailable() {
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return pvr_mem_available();
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}
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static inline void* GPUMemoryAlloc(size_t size) {
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return pvr_mem_malloc(size);
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}
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2
third_party/gldc/src/texture.c
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2
third_party/gldc/src/texture.c
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@ -58,7 +58,7 @@ GLubyte _glInitTextures() {
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_glInitializeTextureObject(default_tex, 0);
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TEXTURE_ACTIVE = default_tex;
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size_t vram_free = GPUMemoryAvailable();
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size_t vram_free = pvr_mem_available();
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YALLOC_SIZE = vram_free - PVR_MEM_BUFFER_SIZE; /* Take all but 64kb VRAM */
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YALLOC_BASE = GPUMemoryAlloc(YALLOC_SIZE);
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