diff options
| -rw-r--r-- | src/mesa/main/api_validate.c | 168 |
1 files changed, 43 insertions, 125 deletions
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c index 006fca45e14..276aab74e92 100644 --- a/src/mesa/main/api_validate.c +++ b/src/mesa/main/api_validate.c @@ -318,18 +318,12 @@ valid_elements_type(struct gl_context *ctx, GLenum type, const char *name) } } -/** - * Error checking for glDrawElements(). Includes parameter checking - * and VBO bounds checking. - * \return GL_TRUE if OK to render, GL_FALSE if error found - */ -GLboolean -_mesa_validate_DrawElements(struct gl_context *ctx, - GLenum mode, GLsizei count, GLenum type, - const GLvoid *indices, GLint basevertex) +static bool +validate_DrawElements_common(struct gl_context *ctx, + GLenum mode, GLsizei count, GLenum type, + const GLvoid *indices, + const char *caller) { - FLUSH_CURRENT(ctx, 0); - /* From the GLES3 specification, section 2.14.2 (Transform Feedback * Primitive Capture): * @@ -339,44 +333,60 @@ _mesa_validate_DrawElements(struct gl_context *ctx, */ if (_mesa_is_gles3(ctx) && _mesa_is_xfb_active_and_unpaused(ctx)) { _mesa_error(ctx, GL_INVALID_OPERATION, - "glDrawElements(transform feedback active)"); - return GL_FALSE; + "%s(transform feedback active)", caller); + return false; } if (count < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glDrawElements(count)" ); - return GL_FALSE; + _mesa_error(ctx, GL_INVALID_VALUE, "%s(count)", caller); + return false; } - if (!_mesa_valid_prim_mode(ctx, mode, "glDrawElements")) { - return GL_FALSE; + if (!_mesa_valid_prim_mode(ctx, mode, caller)) { + return false; } - if (!valid_elements_type(ctx, type, "glDrawElements")) - return GL_FALSE; + if (!valid_elements_type(ctx, type, caller)) + return false; - if (!check_valid_to_render(ctx, "glDrawElements")) - return GL_FALSE; + if (!check_valid_to_render(ctx, caller)) + return false; /* Vertex buffer object tests */ if (_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) { /* use indices in the buffer object */ /* make sure count doesn't go outside buffer bounds */ if (index_bytes(type, count) > ctx->Array.VAO->IndexBufferObj->Size) { - _mesa_warning(ctx, "glDrawElements index out of buffer bounds"); - return GL_FALSE; + _mesa_warning(ctx, "%s index out of buffer bounds", caller); + return false; } } else { /* not using a VBO */ if (!indices) - return GL_FALSE; + return false; } if (count == 0) - return GL_FALSE; + return false; - return GL_TRUE; + return true; +} + +/** + * Error checking for glDrawElements(). Includes parameter checking + * and VBO bounds checking. + * \return GL_TRUE if OK to render, GL_FALSE if error found + */ +GLboolean +_mesa_validate_DrawElements(struct gl_context *ctx, + GLenum mode, GLsizei count, GLenum type, + const GLvoid *indices, GLint basevertex) +{ + FLUSH_CURRENT(ctx, 0); + + return validate_DrawElements_common(ctx, mode, count, type, indices, + "glDrawElements"); } @@ -451,58 +461,13 @@ _mesa_validate_DrawRangeElements(struct gl_context *ctx, GLenum mode, { FLUSH_CURRENT(ctx, 0); - /* From the GLES3 specification, section 2.14.2 (Transform Feedback - * Primitive Capture): - * - * The error INVALID_OPERATION is also generated by DrawElements, - * DrawElementsInstanced, and DrawRangeElements while transform feedback - * is active and not paused, regardless of mode. - */ - if (_mesa_is_gles3(ctx) && _mesa_is_xfb_active_and_unpaused(ctx)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glDrawElements(transform feedback active)"); - return GL_FALSE; - } - - if (count < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(count)" ); - return GL_FALSE; - } - - if (!_mesa_valid_prim_mode(ctx, mode, "glDrawRangeElements")) { - return GL_FALSE; - } - if (end < start) { _mesa_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(end<start)"); return GL_FALSE; } - if (!valid_elements_type(ctx, type, "glDrawRangeElements")) - return GL_FALSE; - - if (!check_valid_to_render(ctx, "glDrawRangeElements")) - return GL_FALSE; - - /* Vertex buffer object tests */ - if (_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) { - /* use indices in the buffer object */ - /* make sure count doesn't go outside buffer bounds */ - if (index_bytes(type, count) > ctx->Array.VAO->IndexBufferObj->Size) { - _mesa_warning(ctx, "glDrawRangeElements index out of buffer bounds"); - return GL_FALSE; - } - } - else { - /* not using a VBO */ - if (!indices) - return GL_FALSE; - } - - if (count == 0) - return GL_FALSE; - - return GL_TRUE; + return validate_DrawElements_common(ctx, mode, count, type, indices, + "glDrawRangeElements"); } @@ -634,62 +599,15 @@ _mesa_validate_DrawElementsInstanced(struct gl_context *ctx, { FLUSH_CURRENT(ctx, 0); - /* From the GLES3 specification, section 2.14.2 (Transform Feedback - * Primitive Capture): - * - * The error INVALID_OPERATION is also generated by DrawElements, - * DrawElementsInstanced, and DrawRangeElements while transform feedback - * is active and not paused, regardless of mode. - */ - if (_mesa_is_gles3(ctx) && _mesa_is_xfb_active_and_unpaused(ctx)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glDrawElements(transform feedback active)"); - return GL_FALSE; - } - - if (count < 0) { + if (numInstances < 0) { _mesa_error(ctx, GL_INVALID_VALUE, - "glDrawElementsInstanced(count=%d)", count); + "glDrawElementsInstanced(numInstances=%d)", numInstances); return GL_FALSE; } - if (!_mesa_valid_prim_mode(ctx, mode, "glDrawElementsInstanced")) { - return GL_FALSE; - } - - if (!valid_elements_type(ctx, type, "glDrawElementsInstanced")) - return GL_FALSE; - - if (numInstances <= 0) { - if (numInstances < 0) - _mesa_error(ctx, GL_INVALID_VALUE, - "glDrawElementsInstanced(numInstances=%d)", numInstances); - return GL_FALSE; - } - - if (!check_valid_to_render(ctx, "glDrawElementsInstanced")) - return GL_FALSE; - - /* Vertex buffer object tests */ - if (_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) { - /* use indices in the buffer object */ - /* make sure count doesn't go outside buffer bounds */ - if (index_bytes(type, count) > ctx->Array.VAO->IndexBufferObj->Size) { - _mesa_warning(ctx, - "glDrawElementsInstanced index out of buffer bounds"); - return GL_FALSE; - } - } - else { - /* not using a VBO */ - if (!indices) - return GL_FALSE; - } - - if (count == 0) - return GL_FALSE; - - return GL_TRUE; + return validate_DrawElements_common(ctx, mode, count, type, indices, + "glDrawElementsInstanced") + && (numInstances > 0); } |