diff options
Diffstat (limited to 'src/mesa/state_tracker/st_draw.c')
| -rw-r--r-- | src/mesa/state_tracker/st_draw.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/src/mesa/state_tracker/st_draw.c b/src/mesa/state_tracker/st_draw.c index 503a5f34a3..e13ae57a0e 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" @@ -328,23 +338,29 @@ get_arrays_bounds(const struct st_vertex_program *vp, const GLubyte **low, const GLubyte **high) { const GLubyte *low_addr = NULL; + const GLubyte *high_addr = NULL; GLuint attr; - GLint stride; for (attr = 0; attr < vp->num_inputs; attr++) { const GLuint mesaAttr = vp->index_to_input[attr]; + const GLint stride = arrays[mesaAttr]->StrideB; const GLubyte *start = arrays[mesaAttr]->Ptr; - stride = arrays[mesaAttr]->StrideB; + const unsigned sz = (arrays[mesaAttr]->Size * + _mesa_sizeof_type(arrays[mesaAttr]->Type)); + const GLubyte *end = start + (max_index * stride) + sz; + if (attr == 0) { low_addr = start; + high_addr = end; } else { low_addr = MIN2(low_addr, start); + high_addr = MAX2(high_addr, end); } } *low = low_addr; - *high = low_addr + (max_index + 1) * stride; + *high = high_addr; } @@ -557,7 +573,7 @@ st_draw_vbo(GLcontext *ctx, /* must get these after state validation! */ vp = ctx->st->vp; - vs = &ctx->st->vp->state; + vs = &ctx->st->vp_varient->state; #if 0 if (MESA_VERBOSE & VERBOSE_GLSL) { |