From 93da1522098145f0e7ff9d4188050728b075b4a1 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Sat, 27 Feb 2010 00:37:01 +0100 Subject: [PATCH] r300g: always emit the correct max vertex index to avoid DRM errors Fixing bizarre reports that a vertex buffer is not large enough. --- src/gallium/drivers/r300/r300_context.h | 1 + src/gallium/drivers/r300/r300_render.c | 7 +++++-- src/gallium/drivers/r300/r300_state.c | 7 +++++++ 3 files changed, 13 insertions(+), 2 deletions(-) diff --git a/src/gallium/drivers/r300/r300_context.h b/src/gallium/drivers/r300/r300_context.h index 3d4f6524e5b..8704f185293 100644 --- a/src/gallium/drivers/r300/r300_context.h +++ b/src/gallium/drivers/r300/r300_context.h @@ -326,6 +326,7 @@ struct r300_context { /* Vertex buffers for Gallium. */ struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS]; int vertex_buffer_count; + int vertex_buffer_max_index; /* Vertex elements for Gallium. */ struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS]; int vertex_element_count; diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c index d604bfb7d75..e4f7615368d 100644 --- a/src/gallium/drivers/r300/r300_render.c +++ b/src/gallium/drivers/r300/r300_render.c @@ -452,8 +452,11 @@ void r300_draw_elements(struct pipe_context* pipe, unsigned indexSize, unsigned mode, unsigned start, unsigned count) { - pipe->draw_range_elements(pipe, indexBuffer, indexSize, 0, ~0, - mode, start, count); + struct r300_context *r300 = r300_context(pipe); + + pipe->draw_range_elements(pipe, indexBuffer, indexSize, 0, + r300->vertex_buffer_max_index, + mode, start, count); } void r300_draw_arrays(struct pipe_context* pipe, unsigned mode, diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c index 0f14ccc53e5..ee4409c8899 100644 --- a/src/gallium/drivers/r300/r300_state.c +++ b/src/gallium/drivers/r300/r300_state.c @@ -1026,10 +1026,17 @@ static void r300_set_vertex_buffers(struct pipe_context* pipe, const struct pipe_vertex_buffer* buffers) { struct r300_context* r300 = r300_context(pipe); + unsigned i, max_index = ~0; memcpy(r300->vertex_buffer, buffers, sizeof(struct pipe_vertex_buffer) * count); + + for (i = 0; i < count; i++) { + max_index = MIN2(buffers[i].max_index, max_index); + } + r300->vertex_buffer_count = count; + r300->vertex_buffer_max_index = max_index; if (r300->draw) { draw_flush(r300->draw); -- 2.30.2