Keith Whitwell wrote:
OK, the first round of work on the VBO branch seems to have gone quite
smoothly. It'd be great if a couple of the key r200/r300 people could
check the branch out and verify whether I've broken those drivers or not.
It'd be particularly interesting to see if someone (Aapo?) can take a
look at the disabled vtxfmt_a code and see if it is easy to port that
over to the new archiecture. I've got a feeling it should be fairly
straight-forward, as it's simple to fallback to the tnl/ module for any
unexpected or non-handled situations.
I took a quick look at this and it seems doable. I sketched out a
simplified approach that just attempts to hook the existing code into a
_radeon_draw_prims() callback. It looks like it might work, but it
would be better to try for a deeper integration.
I'm pretty bullish about the vbo code & would like to see an early
merge, so please take a look at this.
Keith
? diff
? server
Index: radeon_vtxfmt_a.c
===================================================================
RCS file: /cvs/mesa/Mesa/src/mesa/drivers/dri/r300/radeon_vtxfmt_a.c,v
retrieving revision 1.22
diff -u -r1.22 radeon_vtxfmt_a.c
--- radeon_vtxfmt_a.c 23 Aug 2006 23:18:39 -0000 1.22
+++ radeon_vtxfmt_a.c 2 Nov 2006 10:20:28 -0000
@@ -46,6 +46,8 @@
#include "state.h"
#include "image.h"
+#include "vbo/vbo_context.h"
+
#define CONV_VB(a, b) rvb->AttribPtr[(a)].size = vb->b->size, \
rvb->AttribPtr[(a)].type = GL_FLOAT, \
rvb->AttribPtr[(a)].stride = vb->b->stride, \
@@ -129,15 +131,7 @@
CONV(i, VertexAttrib[i]);
for (i=0; i < VERT_ATTRIB_MAX; i++) {
- if (enabled & (1 << i)) {
- rmesa->state.VB.AttribPtr[i].data += rmesa->state.VB.AttribPtr[i].stride * start;
- } else {
- def.data = ctx->Current.Attrib[i];
- memcpy(&rmesa->state.VB.AttribPtr[i], &def, sizeof(struct dt));
- }
-
- /*if(rmesa->state.VB.AttribPtr[i].data == ctx->Current.Attrib[i])
- fprintf(stderr, "%d is default coord\n", i);*/
+ rmesa->state.VB.AttribPtr[i].data += rmesa->state.VB.AttribPtr[i].stride * start;
}
for(i=0; i < VERT_ATTRIB_MAX; i++){
@@ -177,177 +171,11 @@
void radeon_init_vtxfmt_a(r300ContextPtr rmesa);
-static void radeonDrawElements( GLenum mode, GLsizei count, GLenum type, const GLvoid *c_indices )
-{
- GET_CURRENT_CONTEXT(ctx);
- r300ContextPtr rmesa = R300_CONTEXT(ctx);
- int elt_size;
- int i;
- unsigned int min = ~0, max = 0;
- struct tnl_prim prim;
- static void *ptr = NULL;
- struct r300_dma_region rvb;
- const GLvoid *indices = c_indices;
-
- if (count > 65535) {
- WARN_ONCE("Too many verts!\n");
- goto fallback;
- }
-
- if (ctx->Array.ElementArrayBufferObj->Name) {
- /* use indices in the buffer object */
- if (!ctx->Array.ElementArrayBufferObj->Data) {
- _mesa_warning(ctx, "DrawRangeElements with empty vertex elements buffer!");
- return;
- }
- /* actual address is the sum of pointers */
- indices = (GLvoid *)
- ADD_POINTERS(ctx->Array.ElementArrayBufferObj->Data, (const GLubyte *) c_indices);
- }
-
- if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices ))
- return;
-
- FLUSH_CURRENT( ctx, 0 );
-
- memset(&rvb, 0, sizeof(rvb));
- switch (type) {
- case GL_UNSIGNED_BYTE:
- for (i=0; i < count; i++) {
- if(((unsigned char *)indices)[i] < min)
- min = ((unsigned char *)indices)[i];
- if(((unsigned char *)indices)[i] > max)
- max = ((unsigned char *)indices)[i];
- }
-
-#ifdef FORCE_32BITS_ELTS
- elt_size = 4;
-#else
- elt_size = 2;
-#endif
- r300AllocDmaRegion(rmesa, &rvb, count * elt_size, elt_size);
- rvb.aos_offset = GET_START(&rvb);
- ptr = rvb.address + rvb.start;
-
-#ifdef FORCE_32BITS_ELTS
- for (i=0; i < count; i++)
- ((unsigned int *)ptr)[i] = ((unsigned char *)indices)[i] - min;
-#else
- for (i=0; i < count; i++)
- ((unsigned short int *)ptr)[i] = ((unsigned char *)indices)[i] - min;
-#endif
- break;
-
- case GL_UNSIGNED_SHORT:
- for (i=0; i < count; i++) {
- if(((unsigned short int *)indices)[i] < min)
- min = ((unsigned short int *)indices)[i];
- if(((unsigned short int *)indices)[i] > max)
- max = ((unsigned short int *)indices)[i];
- }
-
-#ifdef FORCE_32BITS_ELTS
- elt_size = 4;
-#else
- elt_size = 2;
-#endif
-
- r300AllocDmaRegion(rmesa, &rvb, count * elt_size, elt_size);
- rvb.aos_offset = GET_START(&rvb);
- ptr = rvb.address + rvb.start;
-
-#ifdef FORCE_32BITS_ELTS
- for (i=0; i < count; i++)
- ((unsigned int *)ptr)[i] = ((unsigned short int *)indices)[i] - min;
-#else
- for (i=0; i < count; i++)
- ((unsigned short int *)ptr)[i] = ((unsigned short int *)indices)[i] - min;
-#endif
- break;
-
- case GL_UNSIGNED_INT:
- for (i=0; i < count; i++) {
- if(((unsigned int *)indices)[i] < min)
- min = ((unsigned int *)indices)[i];
- if(((unsigned int *)indices)[i] > max)
- max = ((unsigned int *)indices)[i];
- }
-
-#ifdef FORCE_32BITS_ELTS
- elt_size = 4;
-#else
- if (max - min <= 65535)
- elt_size = 2;
- else
- elt_size = 4;
-#endif
- r300AllocDmaRegion(rmesa, &rvb, count * elt_size, elt_size);
- rvb.aos_offset = GET_START(&rvb);
- ptr = rvb.address + rvb.start;
-
-
- if (elt_size == 2)
- for (i=0; i < count; i++)
- ((unsigned short int *)ptr)[i] = ((unsigned int *)indices)[i] - min;
- else
- for (i=0; i < count; i++)
- ((unsigned int *)ptr)[i] = ((unsigned int *)indices)[i] - min;
- break;
-
- default:
- WARN_ONCE("Unknown elt type!\n");
- goto fallback;
- }
-
- if (ctx->NewState)
- _mesa_update_state( ctx );
-
- r300UpdateShaders(rmesa);
-
- if (setup_arrays(rmesa, min) >= R300_FALLBACK_TCL) {
- r300ReleaseDmaRegion(rmesa, &rvb, __FUNCTION__);
- goto fallback;
- }
-
- rmesa->state.VB.Count = max - min + 1;
-
- r300UpdateShaderStates(rmesa);
-
- rmesa->state.VB.Primitive = &prim;
- rmesa->state.VB.PrimitiveCount = 1;
-
- prim.mode = mode | PRIM_BEGIN | PRIM_END;
- if (rmesa->state.VB.LockCount)
- prim.start = min - rmesa->state.VB.LockFirst;
- else
- prim.start = 0;
- prim.count = count;
-
- rmesa->state.VB.Elts = ptr;
- rmesa->state.VB.elt_size = elt_size;
-
- if (r300_run_vb_render(ctx, NULL)) {
- r300ReleaseDmaRegion(rmesa, &rvb, __FUNCTION__);
- goto fallback;
- }
-
- if(rvb.buf)
- radeon_mm_use(rmesa, rvb.buf->id);
-
- r300ReleaseDmaRegion(rmesa, &rvb, __FUNCTION__);
- return;
-
- fallback:
- _tnl_array_init(ctx);
- _mesa_install_exec_vtxfmt( ctx, &TNL_CONTEXT(ctx)->exec_vtxfmt );
- CALL_DrawElements(GET_DISPATCH(), (mode, count, type, c_indices));
- radeon_init_vtxfmt_a(rmesa);
- _mesa_install_exec_vtxfmt( ctx, &TNL_CONTEXT(ctx)->exec_vtxfmt );
-}
-static void radeonDrawRangeElements(GLenum mode, GLuint min, GLuint max, GLsizei count, GLenum type, const GLvoid *c_indices)
+static void radeonDrawRangeElements(GLcontext *ctx,
+ GLenum mode, GLuint min, GLuint max, GLsizei count,
+ GLenum type, const GLvoid *c_indices)
{
- GET_CURRENT_CONTEXT(ctx);
r300ContextPtr rmesa = R300_CONTEXT(ctx);
struct tnl_prim prim;
int elt_size;
@@ -371,26 +199,23 @@
indices += i * _mesa_sizeof_type(type);
count -= i;
}
- return ;
+ return GL_TRUE;
}
WARN_ONCE("Too many verts!\n");
- goto fallback;
+ return GL_FALSE;
}
if (ctx->Array.ElementArrayBufferObj->Name) {
/* use indices in the buffer object */
if (!ctx->Array.ElementArrayBufferObj->Data) {
_mesa_warning(ctx, "DrawRangeElements with empty vertex elements buffer!");
- return;
+ return GL_TRUE;
}
/* actual address is the sum of pointers */
indices = (GLvoid *)
ADD_POINTERS(ctx->Array.ElementArrayBufferObj->Data, (const GLubyte *) c_indices);
}
- if (!_mesa_validate_DrawRangeElements( ctx, mode, min, max, count, type, indices ))
- return;
-
FLUSH_CURRENT( ctx, 0 );
#ifdef OPTIMIZE_ELTS
min = 0;
@@ -465,7 +290,7 @@
default:
WARN_ONCE("Unknown elt type!\n");
- goto fallback;
+ return GL_FALSE;
}
/* XXX: setup_arrays before state update? */
@@ -477,7 +302,7 @@
if (setup_arrays(rmesa, min) >= R300_FALLBACK_TCL) {
r300ReleaseDmaRegion(rmesa, &rvb, __FUNCTION__);
- goto fallback;
+ return GL_FALSE;
}
rmesa->state.VB.Count = max - min + 1;
@@ -501,37 +326,30 @@
if (r300_run_vb_render(ctx, NULL)) {
r300ReleaseDmaRegion(rmesa, &rvb, __FUNCTION__);
- goto fallback;
+ return GL_FALSE;
}
if(rvb.buf)
radeon_mm_use(rmesa, rvb.buf->id);
r300ReleaseDmaRegion(rmesa, &rvb, __FUNCTION__);
- return ;
-
- fallback:
- _tnl_array_init(ctx);
- _mesa_install_exec_vtxfmt( ctx, &TNL_CONTEXT(ctx)->exec_vtxfmt );
- CALL_DrawRangeElements(GET_DISPATCH(), (mode, min, max, count, type, c_indices));
- radeon_init_vtxfmt_a(rmesa);
- _mesa_install_exec_vtxfmt( ctx, &TNL_CONTEXT(ctx)->exec_vtxfmt );
+ return GL_TRUE;
}
-static void radeonDrawArrays( GLenum mode, GLint start, GLsizei count )
+static GLboolean radeonDrawArrays( GLcontext *ctx,
+ GLenum mode, GLint start, GLsizei count )
{
GET_CURRENT_CONTEXT(ctx);
r300ContextPtr rmesa = R300_CONTEXT(ctx);
struct tnl_prim prim;
if (count > 65535) {
+ /* TODO: split into multiple draws.
+ */
WARN_ONCE("Too many verts!\n");
- goto fallback;
+ return GL_FALSE;
}
- if (!_mesa_validate_DrawArrays( ctx, mode, start, count ))
- return;
-
FLUSH_CURRENT( ctx, 0 );
if (ctx->NewState)
@@ -542,7 +360,7 @@
r300UpdateShaders(rmesa);
if (setup_arrays(rmesa, start) >= R300_FALLBACK_TCL)
- goto fallback;
+ return GL_FALSE;
rmesa->state.VB.Count = count;
@@ -564,31 +382,49 @@
rmesa->state.VB.elt_max = 0;
if (r300_run_vb_render(ctx, NULL))
- goto fallback;
+ return GL_FALSE;
- return ;
-
- fallback:
- _tnl_array_init(ctx);
- _mesa_install_exec_vtxfmt( ctx, &TNL_CONTEXT(ctx)->exec_vtxfmt );
- CALL_DrawArrays(GET_DISPATCH(), (mode, start, count));
- radeon_init_vtxfmt_a(rmesa);
- _mesa_install_exec_vtxfmt( ctx, &TNL_CONTEXT(ctx)->exec_vtxfmt );
+ return GL_TRUE;
}
+static void radeon_draw_prims( GLcontext *ctx,
+ const struct gl_client_array *arrays[],
+ const struct _mesa_prim *prim,
+ GLuint nr_prims,
+ const struct _mesa_index_buffer *ib,
+ GLuint min_index,
+ GLuint max_index)
+{
+ if (ib == NULL) {
+ for (i = 0; i < nr_prims; i++) {
+ if (!radeonDrawArrays(...)) {
+ /* Fallback
+ */
+ _tnl_draw_prims(ctx, arrays, prim + i, nr_prims - i, ib,
+ min_index, max_index);
+ return;
+ }
+ }
+ }
+ else {
+ for (i = 0; i < nr_prims; i++) {
+ if (!radeonDrawRangeElements(...)) {
+ _tnl_draw_prims(ctx, arrays, prim + i, nr_prims - i, ib,
+ min_index, max_index);
+ return;
+ }
+ }
+ }
+}
+
void radeon_init_vtxfmt_a(r300ContextPtr rmesa)
{
GLcontext *ctx;
- GLvertexformat *vfmt;
-
- ctx = rmesa->radeon.glCtx;
- vfmt = (GLvertexformat *)ctx->TnlModule.Current;
-
- vfmt->DrawElements = radeonDrawElements;
- vfmt->DrawArrays = radeonDrawArrays;
- vfmt->DrawRangeElements = radeonDrawRangeElements;
+ struct vbo_context *vbo = vbo_context(ctx);
+ vbo->draw_prims = radeon_draw_prims;
}
+
#endif
#ifdef HW_VBOS
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