GLboolean _mesa_validate_DrawElementsInstanced(struct gl_context *ctx, GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, GLsizei numInstances, GLint basevertex) { ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); if (count <= 0) { if (count < 0) _mesa_error(ctx, GL_INVALID_VALUE, "glDrawElementsInstanced(count=%d)", count); return GL_FALSE; } if (mode > GL_TRIANGLE_STRIP_ADJACENCY_ARB) { _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElementsInstanced(mode = 0x%x)", mode); return GL_FALSE; } if (type != GL_UNSIGNED_INT && type != GL_UNSIGNED_BYTE && type != GL_UNSIGNED_SHORT) { _mesa_error(ctx, GL_INVALID_ENUM, "glDrawElementsInstanced(type=0x%x)", type); 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.ElementArrayBufferObj)) { /* use indices in the buffer object */ /* make sure count doesn't go outside buffer bounds */ if (index_bytes(type, count) > ctx->Array.ElementArrayBufferObj->Size) { _mesa_warning(ctx, "glDrawElementsInstanced index out of buffer bounds"); return GL_FALSE; } } else { /* not using a VBO */ if (!indices) return GL_FALSE; } if (!check_index_bounds(ctx, count, type, indices, basevertex)) return GL_FALSE; return GL_TRUE; }
/** * Error checking for glMultiDrawElements(). Includes parameter checking * and VBO bounds checking. * \return GL_TRUE if OK to render, GL_FALSE if error found */ GLboolean _mesa_validate_MultiDrawElements(struct gl_context *ctx, GLenum mode, const GLsizei *count, GLenum type, const GLvoid * const *indices, GLuint primcount, const GLint *basevertex) { unsigned i; FLUSH_CURRENT(ctx, 0); for (i = 0; i < primcount; i++) { if (count[i] <= 0) { if (count[i] < 0) _mesa_error(ctx, GL_INVALID_VALUE, "glMultiDrawElements(count)" ); return GL_FALSE; } } if (!_mesa_valid_prim_mode(ctx, mode, "glMultiDrawElements")) { return GL_FALSE; } if (!valid_elements_type(ctx, type, "glMultiDrawElements")) return GL_FALSE; if (!check_valid_to_render(ctx, "glMultiDrawElements")) return GL_FALSE; /* Vertex buffer object tests */ if (_mesa_is_bufferobj(ctx->Array.ArrayObj->ElementArrayBufferObj)) { /* use indices in the buffer object */ /* make sure count doesn't go outside buffer bounds */ for (i = 0; i < primcount; i++) { if (index_bytes(type, count[i]) > ctx->Array.ArrayObj->ElementArrayBufferObj->Size) { _mesa_warning(ctx, "glMultiDrawElements index out of buffer bounds"); return GL_FALSE; } } } else { /* not using a VBO */ for (i = 0; i < primcount; i++) { if (!indices[i]) return GL_FALSE; } } for (i = 0; i < primcount; i++) { if (!check_index_bounds(ctx, count[i], type, indices[i], basevertex ? basevertex[i] : 0)) return GL_FALSE; } 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 */ GLboolean _mesa_validate_DrawElements(struct gl_context *ctx, GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, GLint basevertex) { 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 (count < 0) _mesa_error(ctx, GL_INVALID_VALUE, "glDrawElements(count)" ); return GL_FALSE; } if (!_mesa_valid_prim_mode(ctx, mode, "glDrawElements")) { return GL_FALSE; } if (!valid_elements_type(ctx, type, "glDrawElements")) return GL_FALSE; if (!check_valid_to_render(ctx, "glDrawElements")) return GL_FALSE; /* Vertex buffer object tests */ if (_mesa_is_bufferobj(ctx->Array.ArrayObj->ElementArrayBufferObj)) { /* use indices in the buffer object */ /* make sure count doesn't go outside buffer bounds */ if (index_bytes(type, count) > ctx->Array.ArrayObj->ElementArrayBufferObj->Size) { _mesa_warning(ctx, "glDrawElements index out of buffer bounds"); return GL_FALSE; } } else { /* not using a VBO */ if (!indices) return GL_FALSE; } if (!check_index_bounds(ctx, count, type, indices, basevertex)) return GL_FALSE; return GL_TRUE; }
/** * Error checking for glDrawRangeElements(). Includes parameter checking * and VBO bounds checking. * \return GL_TRUE if OK to render, GL_FALSE if error found */ GLboolean _mesa_validate_DrawRangeElements(GLcontext *ctx, GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices, GLint basevertex) { ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); if (count <= 0) { if (count < 0) _mesa_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(count)" ); return GL_FALSE; } if (mode > GL_POLYGON) { _mesa_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)" ); return GL_FALSE; } if (end < start) { _mesa_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(end<start)"); return GL_FALSE; } if (type != GL_UNSIGNED_INT && type != GL_UNSIGNED_BYTE && type != GL_UNSIGNED_SHORT) { _mesa_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)" ); return GL_FALSE; } if (!check_valid_to_render(ctx, "glDrawRangeElements")) return GL_FALSE; /* Vertex buffer object tests */ if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj)) { /* use indices in the buffer object */ /* make sure count doesn't go outside buffer bounds */ if (index_bytes(type, count) > ctx->Array.ElementArrayBufferObj->Size) { _mesa_warning(ctx, "glDrawRangeElements index out of buffer bounds"); return GL_FALSE; } } else { /* not using a VBO */ if (!indices) return GL_FALSE; } if (!check_index_bounds(ctx, count, type, indices, basevertex)) return GL_FALSE; return GL_TRUE; }
/** * Error checking for glDrawRangeElements(). Includes parameter checking * and VBO bounds checking. * \return GL_TRUE if OK to render, GL_FALSE if error found */ GLboolean _mesa_validate_DrawRangeElements(GLcontext *ctx, GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices) { ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); if (count <= 0) { if (count < 0) _mesa_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(count)" ); return GL_FALSE; } if (mode > GL_POLYGON) { _mesa_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(mode)" ); return GL_FALSE; } if (end < start) { _mesa_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(end<start)"); return GL_FALSE; } if (type != GL_UNSIGNED_INT && type != GL_UNSIGNED_BYTE && type != GL_UNSIGNED_SHORT) { _mesa_error(ctx, GL_INVALID_ENUM, "glDrawRangeElements(type)" ); return GL_FALSE; } if (ctx->NewState) _mesa_update_state(ctx); if (!check_valid_to_render(ctx, "RangeElements")) return GL_FALSE; /* Vertex buffer object tests */ if (ctx->Array.ElementArrayBufferObj->Name) { /* use indices in the buffer object */ /* make sure count doesn't go outside buffer bounds */ if (index_bytes(type, count) > ctx->Array.ElementArrayBufferObj->Size) { _mesa_warning(ctx, "glDrawRangeElements index out of buffer bounds"); return GL_FALSE; } } else { /* not using a VBO */ if (!indices) return GL_FALSE; } if (ctx->Const.CheckArrayBounds) { GLuint max = max_buffer_index(ctx, count, type, indices, ctx->Array.ElementArrayBufferObj); if (max >= ctx->Array.ArrayObj->_MaxElement) { /* the max element is out of bounds of one or more enabled arrays */ return GL_FALSE; } } return GL_TRUE; }