diff options
Diffstat (limited to 'src/mesa/state_tracker/st_draw.c')
| -rw-r--r-- | src/mesa/state_tracker/st_draw.c | 158 |
1 files changed, 71 insertions, 87 deletions
diff --git a/src/mesa/state_tracker/st_draw.c b/src/mesa/state_tracker/st_draw.c index c76bff9181..e54f21be60 100644 --- a/src/mesa/state_tracker/st_draw.c +++ b/src/mesa/state_tracker/st_draw.c @@ -25,10 +25,20 @@ * **************************************************************************/ - /* - * Authors: - * Keith Whitwell <keith@tungstengraphics.com> - */ +/* + * This file implements the st_draw_vbo() function which is called from + * Mesa's VBO module. All point/line/triangle rendering is done through + * this function whether the user called glBegin/End, glDrawArrays, + * glDrawElements, glEvalMesh, or glCalList, etc. + * + * We basically convert the VBO's vertex attribute/array information into + * Gallium vertex state, bind the vertex buffer objects and call + * pipe->draw_elements(), pipe->draw_range_elements() or pipe->draw_arrays(). + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + #include "main/imports.h" #include "main/image.h" @@ -207,59 +217,7 @@ st_pipe_vertex_format(GLenum type, GLuint size, GLenum format, } -/* - * If edge flags are needed, setup an bitvector of flags and call - * pipe->set_edgeflags(). - * XXX memleak: need to free the returned pointer at some point - */ -static void * -setup_edgeflags(GLcontext *ctx, GLenum primMode, GLint start, GLint count, - const struct gl_client_array *array) -{ - struct pipe_context *pipe = ctx->st->pipe; - - if ((primMode == GL_TRIANGLES || - primMode == GL_QUADS || - primMode == GL_POLYGON) && - (ctx->Polygon.FrontMode != GL_FILL || - ctx->Polygon.BackMode != GL_FILL)) { - /* need edge flags */ - GLint i; - unsigned *vec; - struct st_buffer_object *stobj = st_buffer_object(array->BufferObj); - ubyte *map; - - if (!stobj || stobj->Base.Name == 0) { - /* edge flags are not in a VBO */ - return NULL; - } - - vec = (unsigned *) _mesa_calloc(sizeof(unsigned) * ((count + 31) / 32)); - if (!vec) - return NULL; - - map = pipe_buffer_map(pipe->screen, stobj->buffer, PIPE_BUFFER_USAGE_CPU_READ); - map = ADD_POINTERS(map, array->Ptr); - - for (i = 0; i < count; i++) { - if (*((float *) map)) - vec[i/32] |= 1 << (i % 32); - - map += array->StrideB; - } - - pipe_buffer_unmap(pipe->screen, stobj->buffer); - pipe->set_edgeflags(pipe, vec); - - return vec; - } - else { - /* edge flags not needed */ - pipe->set_edgeflags(pipe, NULL); - return NULL; - } -} /** @@ -269,6 +227,7 @@ setup_edgeflags(GLcontext *ctx, GLenum primMode, GLint start, GLint count, */ static GLboolean is_interleaved_arrays(const struct st_vertex_program *vp, + const struct st_vp_varient *vpv, const struct gl_client_array **arrays, GLboolean *userSpace) { @@ -278,7 +237,7 @@ is_interleaved_arrays(const struct st_vertex_program *vp, GLuint num_client_arrays = 0; const GLubyte *client_addr = NULL; - for (attr = 0; attr < vp->num_inputs; attr++) { + for (attr = 0; attr < vpv->num_inputs; attr++) { const GLuint mesaAttr = vp->index_to_input[attr]; const struct gl_buffer_object *bufObj = arrays[mesaAttr]->BufferObj; const GLsizei stride = arrays[mesaAttr]->StrideB; /* in bytes */ @@ -311,7 +270,7 @@ is_interleaved_arrays(const struct st_vertex_program *vp, } } - *userSpace = (num_client_arrays == vp->num_inputs); + *userSpace = (num_client_arrays == vpv->num_inputs); /* printf("user space: %d (%d %d)\n", (int) *userSpace,num_client_arrays,vp->num_inputs); */ return GL_TRUE; @@ -323,15 +282,16 @@ is_interleaved_arrays(const struct st_vertex_program *vp, */ static void get_arrays_bounds(const struct st_vertex_program *vp, - const struct gl_client_array **arrays, - GLuint max_index, - const GLubyte **low, const GLubyte **high) + const struct st_vp_varient *vpv, + const struct gl_client_array **arrays, + GLuint max_index, + const GLubyte **low, const GLubyte **high) { const GLubyte *low_addr = NULL; const GLubyte *high_addr = NULL; GLuint attr; - for (attr = 0; attr < vp->num_inputs; attr++) { + for (attr = 0; attr < vpv->num_inputs; attr++) { const GLuint mesaAttr = vp->index_to_input[attr]; const GLint stride = arrays[mesaAttr]->StrideB; const GLubyte *start = arrays[mesaAttr]->Ptr; @@ -363,6 +323,7 @@ get_arrays_bounds(const struct st_vertex_program *vp, static void setup_interleaved_attribs(GLcontext *ctx, const struct st_vertex_program *vp, + const struct st_vp_varient *vpv, const struct gl_client_array **arrays, GLuint max_index, GLboolean userSpace, @@ -371,9 +332,9 @@ setup_interleaved_attribs(GLcontext *ctx, { struct pipe_context *pipe = ctx->st->pipe; GLuint attr; - const GLubyte *offset0; + const GLubyte *offset0 = NULL; - for (attr = 0; attr < vp->num_inputs; attr++) { + for (attr = 0; attr < vpv->num_inputs; attr++) { const GLuint mesaAttr = vp->index_to_input[attr]; struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj; struct st_buffer_object *stobj = st_buffer_object(bufobj); @@ -384,7 +345,7 @@ setup_interleaved_attribs(GLcontext *ctx, if (attr == 0) { const GLubyte *low, *high; - get_arrays_bounds(vp, arrays, max_index, &low, &high); + get_arrays_bounds(vp, vpv, arrays, max_index, &low, &high); /*printf("buffer range: %p %p %d\n", low, high, high-low);*/ offset0 = low; @@ -425,6 +386,7 @@ setup_interleaved_attribs(GLcontext *ctx, static void setup_non_interleaved_attribs(GLcontext *ctx, const struct st_vertex_program *vp, + const struct st_vp_varient *vpv, const struct gl_client_array **arrays, GLuint max_index, GLboolean *userSpace, @@ -434,7 +396,7 @@ setup_non_interleaved_attribs(GLcontext *ctx, struct pipe_context *pipe = ctx->st->pipe; GLuint attr; - for (attr = 0; attr < vp->num_inputs; attr++) { + for (attr = 0; attr < vpv->num_inputs; attr++) { const GLuint mesaAttr = vp->index_to_input[attr]; struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj; GLsizei stride = arrays[mesaAttr]->StrideB; @@ -528,6 +490,20 @@ check_uniforms(GLcontext *ctx) } +static unsigned translate_prim( GLcontext *ctx, + unsigned prim ) +{ + /* Avoid quadstrips if it's easy to do so: + */ + if (prim == GL_QUAD_STRIP && + ctx->Light.ShadeModel != GL_FLAT && + ctx->Polygon.FrontMode == GL_FILL && + ctx->Polygon.BackMode == GL_FILL) + prim = GL_TRIANGLE_STRIP; + + return prim; +} + /** * This function gets plugged into the VBO module and is called when * we have something to render. @@ -545,25 +521,36 @@ st_draw_vbo(GLcontext *ctx, { struct pipe_context *pipe = ctx->st->pipe; const struct st_vertex_program *vp; + const struct st_vp_varient *vpv; const struct pipe_shader_state *vs; struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS]; GLuint attr; struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS]; unsigned num_vbuffers, num_velements; - GLboolean userSpace; + GLboolean userSpace = GL_FALSE; + GLboolean vertDataEdgeFlags; /* Gallium probably doesn't want this in some cases. */ if (!index_bounds_valid) - vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index); + if (!vbo_all_varyings_in_vbos(arrays)) + vbo_get_minmax_index(ctx, prims, ib, &min_index, &max_index); /* sanity check for pointer arithmetic below */ assert(sizeof(arrays[0]->Ptr[0]) == 1); + vertDataEdgeFlags = arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj && + arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj->Name; + if (vertDataEdgeFlags != ctx->st->vertdata_edgeflags) { + ctx->st->vertdata_edgeflags = vertDataEdgeFlags; + ctx->st->dirty.st |= ST_NEW_EDGEFLAGS_DATA; + } + st_validate_state(ctx->st); /* must get these after state validation! */ vp = ctx->st->vp; - vs = &ctx->st->vp->state; + vpv = ctx->st->vp_varient; + vs = &vpv->state; #if 0 if (MESA_VERBOSE & VERBOSE_GLSL) { @@ -576,21 +563,21 @@ st_draw_vbo(GLcontext *ctx, /* * Setup the vbuffer[] and velements[] arrays. */ - if (is_interleaved_arrays(vp, arrays, &userSpace)) { + if (is_interleaved_arrays(vp, vpv, arrays, &userSpace)) { /*printf("Draw interleaved\n");*/ - setup_interleaved_attribs(ctx, vp, arrays, max_index, userSpace, + setup_interleaved_attribs(ctx, vp, vpv, arrays, max_index, userSpace, vbuffer, velements); num_vbuffers = 1; - num_velements = vp->num_inputs; + num_velements = vpv->num_inputs; if (num_velements == 0) num_vbuffers = 0; } else { /*printf("Draw non-interleaved\n");*/ - setup_non_interleaved_attribs(ctx, vp, arrays, max_index, + setup_non_interleaved_attribs(ctx, vp, vpv, arrays, max_index, &userSpace, vbuffer, velements); - num_vbuffers = vp->num_inputs; - num_velements = vp->num_inputs; + num_vbuffers = vpv->num_inputs; + num_velements = vpv->num_inputs; } #if 0 @@ -623,6 +610,7 @@ st_draw_vbo(GLcontext *ctx, struct gl_buffer_object *bufobj = ib->obj; struct pipe_buffer *indexBuf = NULL; unsigned indexSize, indexOffset, i; + unsigned prim; switch (ib->type) { case GL_UNSIGNED_INT: @@ -661,24 +649,20 @@ st_draw_vbo(GLcontext *ctx, * through to driver & draw module. These interfaces still * need a bit of work... */ - setup_edgeflags(ctx, prims[i].mode, - prims[i].start + indexOffset, prims[i].count, - arrays[VERT_ATTRIB_EDGEFLAG]); + prim = translate_prim( ctx, prims[i].mode ); pipe->draw_range_elements(pipe, indexBuf, indexSize, min_index, max_index, - prims[i].mode, + prim, prims[i].start + indexOffset, prims[i].count); } else { for (i = 0; i < nr_prims; i++) { - setup_edgeflags(ctx, prims[i].mode, - prims[i].start + indexOffset, prims[i].count, - arrays[VERT_ATTRIB_EDGEFLAG]); + prim = translate_prim( ctx, prims[i].mode ); pipe->draw_elements(pipe, indexBuf, indexSize, - prims[i].mode, + prim, prims[i].start + indexOffset, prims[i].count); } } @@ -688,12 +672,12 @@ st_draw_vbo(GLcontext *ctx, else { /* non-indexed */ GLuint i; + GLuint prim; + for (i = 0; i < nr_prims; i++) { - setup_edgeflags(ctx, prims[i].mode, - prims[i].start, prims[i].count, - arrays[VERT_ATTRIB_EDGEFLAG]); + prim = translate_prim( ctx, prims[i].mode ); - pipe->draw_arrays(pipe, prims[i].mode, prims[i].start, prims[i].count); + pipe->draw_arrays(pipe, prim, prims[i].start, prims[i].count); } } |