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author | marha <marha@users.sourceforge.net> | 2012-01-13 17:04:47 +0100 |
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committer | marha <marha@users.sourceforge.net> | 2012-01-13 17:04:47 +0100 |
commit | e2e1bdced7e09e39fed613dae1f2f3096cb18118 (patch) | |
tree | 63c7066c79d1053c7656b6175e22e2ced6f11e01 /mesalib/src/mesa/vbo/vbo_exec_array.c | |
parent | cc96d00cae473f472e371328ce8dc572ad258073 (diff) | |
parent | 5cfbe97cd797d8f78ece208bb5114704b83d8aab (diff) | |
download | vcxsrv-e2e1bdced7e09e39fed613dae1f2f3096cb18118.tar.gz vcxsrv-e2e1bdced7e09e39fed613dae1f2f3096cb18118.tar.bz2 vcxsrv-e2e1bdced7e09e39fed613dae1f2f3096cb18118.zip |
Merge remote-tracking branch 'origin/released'
Conflicts:
libxcb/src/xcb_auth.c
libxcb/src/xcb_conn.c
libxcb/src/xcb_out.c
libxcb/src/xcb_util.c
xorg-server/dix/dispatch.c
xorg-server/include/dixstruct.h
xorg-server/include/misc.h
xorg-server/os/connection.c
Diffstat (limited to 'mesalib/src/mesa/vbo/vbo_exec_array.c')
-rw-r--r-- | mesalib/src/mesa/vbo/vbo_exec_array.c | 53 |
1 files changed, 44 insertions, 9 deletions
diff --git a/mesalib/src/mesa/vbo/vbo_exec_array.c b/mesalib/src/mesa/vbo/vbo_exec_array.c index fec49d35e..9861b21c9 100644 --- a/mesalib/src/mesa/vbo/vbo_exec_array.c +++ b/mesalib/src/mesa/vbo/vbo_exec_array.c @@ -99,24 +99,24 @@ vbo_sizeof_ib_type(GLenum type) * If primitive restart is enabled, we need to ignore restart * indexes when computing min/max. */ -void +static void vbo_get_minmax_index(struct gl_context *ctx, const struct _mesa_prim *prim, const struct _mesa_index_buffer *ib, - GLuint *min_index, GLuint *max_index) + GLuint *min_index, GLuint *max_index, + const GLuint count) { const GLboolean restart = ctx->Array.PrimitiveRestart; const GLuint restartIndex = ctx->Array.RestartIndex; - const GLuint count = prim->count; - const void *indices; + const int index_size = vbo_sizeof_ib_type(ib->type); + const char *indices; GLuint i; + indices = (char *) ib->ptr + prim->start * index_size; if (_mesa_is_bufferobj(ib->obj)) { - indices = ctx->Driver.MapBufferRange(ctx, (GLsizeiptr) ib->ptr, - count * vbo_sizeof_ib_type(ib->type), - GL_MAP_READ_BIT, ib->obj); - } else { - indices = ib->ptr; + GLsizeiptr size = MIN2(count * index_size, ib->obj->Size); + indices = ctx->Driver.MapBufferRange(ctx, (GLintptr) indices, size, + GL_MAP_READ_BIT, ib->obj); } switch (ib->type) { @@ -196,6 +196,41 @@ vbo_get_minmax_index(struct gl_context *ctx, } } +/** + * Compute min and max elements for nr_prims + */ +void +vbo_get_minmax_indices(struct gl_context *ctx, + const struct _mesa_prim *prims, + const struct _mesa_index_buffer *ib, + GLuint *min_index, + GLuint *max_index, + GLuint nr_prims) +{ + GLuint tmp_min, tmp_max; + GLuint i; + GLuint count; + + *min_index = ~0; + *max_index = 0; + + for (i = 0; i < nr_prims; i++) { + const struct _mesa_prim *start_prim; + + start_prim = &prims[i]; + count = start_prim->count; + /* Do combination if possible to reduce map/unmap count */ + while ((i + 1 < nr_prims) && + (prims[i].start + prims[i].count == prims[i+1].start)) { + count += prims[i+1].count; + i++; + } + vbo_get_minmax_index(ctx, start_prim, ib, &tmp_min, &tmp_max, count); + *min_index = MIN2(*min_index, tmp_min); + *max_index = MAX2(*max_index, tmp_max); + } +} + /** * Check that element 'j' of the array has reasonable data. |