Module: Mesa Branch: master Commit: e5d29ebb5e5dd923c9c60972170d072120007aab URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=e5d29ebb5e5dd923c9c60972170d072120007aab
Author: Brian Paul <[email protected]> Date: Mon Sep 21 14:07:35 2009 -0600 mesa: make max_buffer_index() a non-static function --- src/mesa/main/api_validate.c | 45 ++++++++++++++++++++++++++++++++++++++++++ src/mesa/main/api_validate.h | 6 +++++ 2 files changed, 51 insertions(+), 0 deletions(-) diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c index 4a1448d..e71e5a6 100644 --- a/src/mesa/main/api_validate.c +++ b/src/mesa/main/api_validate.c @@ -52,6 +52,51 @@ index_bytes(GLenum type, GLsizei count) /** + * Find the max index in the given element/index buffer + */ +GLuint +_mesa_max_buffer_index(GLcontext *ctx, GLuint count, GLenum type, + const void *indices, + struct gl_buffer_object *elementBuf) +{ + const GLubyte *map = NULL; + GLuint max = 0; + GLuint i; + + if (_mesa_is_bufferobj(elementBuf)) { + /* elements are in a user-defined buffer object. need to map it */ + map = ctx->Driver.MapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER, + GL_READ_ONLY, elementBuf); + /* Actual address is the sum of pointers */ + indices = (const GLvoid *) ADD_POINTERS(map, (const GLubyte *) indices); + } + + if (type == GL_UNSIGNED_INT) { + for (i = 0; i < count; i++) + if (((GLuint *) indices)[i] > max) + max = ((GLuint *) indices)[i]; + } + else if (type == GL_UNSIGNED_SHORT) { + for (i = 0; i < count; i++) + if (((GLushort *) indices)[i] > max) + max = ((GLushort *) indices)[i]; + } + else { + ASSERT(type == GL_UNSIGNED_BYTE); + for (i = 0; i < count; i++) + if (((GLubyte *) indices)[i] > max) + max = ((GLubyte *) indices)[i]; + } + + if (map) { + ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, elementBuf); + } + + return max; +} + + +/** * Check if OK to draw arrays/elements. */ static GLboolean diff --git a/src/mesa/main/api_validate.h b/src/mesa/main/api_validate.h index 1d3ae15..6064d15 100644 --- a/src/mesa/main/api_validate.h +++ b/src/mesa/main/api_validate.h @@ -30,6 +30,12 @@ #include "mtypes.h" + +extern GLuint +_mesa_max_buffer_index(GLcontext *ctx, GLuint count, GLenum type, + const void *indices, + struct gl_buffer_object *elementBuf); + extern GLboolean _mesa_validate_DrawArrays(GLcontext *ctx, GLenum mode, GLint start, GLsizei count); _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
