diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_render.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_render.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c index 4c5fb405c6..4b210f72db 100644 --- a/src/gallium/drivers/r300/r300_render.c +++ b/src/gallium/drivers/r300/r300_render.c @@ -70,14 +70,21 @@ uint32_t r300_translate_primitive(unsigned prim) } } +static boolean r300_nothing_to_draw(struct r300_context *r300) +{ + return r300->rs_state->rs.scissor && + r300->scissor_state->scissor.empty_area; +} + static void r300_emit_draw_arrays(struct r300_context *r300, unsigned mode, unsigned count) { CS_LOCALS(r300); - BEGIN_CS(4); - OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count); + BEGIN_CS(6); + OUT_CS_REG(R300_VAP_VF_MIN_VTX_INDX, 0); + OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count - 1); OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0); OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) | r300_translate_primitive(mode)); @@ -102,7 +109,8 @@ static void r300_emit_draw_elements(struct r300_context *r300, assert((start * indexSize) % 4 == 0); assert(offset_dwords == 0); - BEGIN_CS(10); + BEGIN_CS(12); + OUT_CS_REG(R300_VAP_VF_MIN_VTX_INDX, minIndex); OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, maxIndex); OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0); if (indexSize == 4) { @@ -173,10 +181,15 @@ boolean r300_draw_range_elements(struct pipe_context* pipe, return FALSE; } + if (count > 65535) { return FALSE; } + if (r300_nothing_to_draw(r300)) { + return TRUE; + } + r300_update_derived_state(r300); if (!r300_setup_vertex_buffers(r300)) { @@ -218,6 +231,10 @@ boolean r300_draw_arrays(struct pipe_context* pipe, unsigned mode, return FALSE; } + if (r300_nothing_to_draw(r300)) { + return TRUE; + } + r300_update_derived_state(r300); if (!r300_setup_vertex_buffers(r300)) { @@ -251,6 +268,10 @@ boolean r300_swtcl_draw_arrays(struct pipe_context* pipe, return FALSE; } + if (r300_nothing_to_draw(r300)) { + return TRUE; + } + for (i = 0; i < r300->vertex_buffer_count; i++) { void* buf = pipe_buffer_map(pipe->screen, r300->vertex_buffer[i].buffer, @@ -292,6 +313,10 @@ boolean r300_swtcl_draw_range_elements(struct pipe_context* pipe, return FALSE; } + if (r300_nothing_to_draw(r300)) { + return TRUE; + } + for (i = 0; i < r300->vertex_buffer_count; i++) { void* buf = pipe_buffer_map(pipe->screen, r300->vertex_buffer[i].buffer, |