diff options
Diffstat (limited to 'mesalib/src/mesa/main/api_validate.c')
| -rw-r--r-- | mesalib/src/mesa/main/api_validate.c | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/mesalib/src/mesa/main/api_validate.c b/mesalib/src/mesa/main/api_validate.c index 699b414f5..1fcf5cd68 100644 --- a/mesalib/src/mesa/main/api_validate.c +++ b/mesalib/src/mesa/main/api_validate.c @@ -199,6 +199,27 @@ check_index_bounds(struct gl_context *ctx, GLsizei count, GLenum type, /** + * Is 'mode' a valid value for glBegin(), glDrawArrays(), glDrawElements(), + * etc? The set of legal values depends on whether geometry shaders/programs + * are supported. + */ +GLboolean +_mesa_valid_prim_mode(const struct gl_context *ctx, GLenum mode) +{ + if (ctx->Extensions.ARB_geometry_shader4 && + mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) { + return GL_FALSE; + } + else if (mode > GL_POLYGON) { + return GL_FALSE; + } + else { + return GL_TRUE; + } +} + + +/** * Error checking for glDrawElements(). Includes parameter checking * and VBO bounds checking. * \return GL_TRUE if OK to render, GL_FALSE if error found @@ -216,7 +237,7 @@ _mesa_validate_DrawElements(struct gl_context *ctx, return GL_FALSE; } - if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) { + if (!_mesa_valid_prim_mode(ctx, mode)) { _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(mode)" ); return GL_FALSE; } @@ -273,7 +294,7 @@ _mesa_validate_DrawRangeElements(struct gl_context *ctx, GLenum mode, return GL_FALSE; } - if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) { + if (!_mesa_valid_prim_mode(ctx, mode)) { _mesa_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)" ); return GL_FALSE; } @@ -332,7 +353,7 @@ _mesa_validate_DrawArrays(struct gl_context *ctx, return GL_FALSE; } - if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) { + if (!_mesa_valid_prim_mode(ctx, mode)) { _mesa_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)" ); return GL_FALSE; } @@ -362,7 +383,7 @@ _mesa_validate_DrawArraysInstanced(struct gl_context *ctx, GLenum mode, GLint fi return GL_FALSE; } - if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) { + if (!_mesa_valid_prim_mode(ctx, mode)) { _mesa_error(ctx, GL_INVALID_ENUM, "glDrawArraysInstanced(mode=0x%x)", mode); return GL_FALSE; @@ -408,7 +429,7 @@ _mesa_validate_DrawElementsInstanced(struct gl_context *ctx, return GL_FALSE; } - if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) { + if (!_mesa_valid_prim_mode(ctx, mode)) { _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElementsInstanced(mode = 0x%x)", mode); return GL_FALSE; |