#include "main/macros.h"
#include "main/transformfeedback.h"
+typedef struct {
+ GLuint count;
+ GLuint primCount;
+ GLuint first;
+ GLuint baseInstance;
+} DrawArraysIndirectCommand;
+
+typedef struct {
+ GLuint count;
+ GLuint primCount;
+ GLuint firstIndex;
+ GLint baseVertex;
+ GLuint baseInstance;
+} DrawElementsIndirectCommand;
+
/**
* Check that element 'j' of the array has reasonable data.
_mesa_debug(ctx, "glDrawArraysIndirect(%s, %p)\n",
_mesa_enum_to_string(mode), indirect);
+ /* From the ARB_draw_indirect spec:
+ *
+ * "Initially zero is bound to DRAW_INDIRECT_BUFFER. In the
+ * compatibility profile, this indicates that DrawArraysIndirect and
+ * DrawElementsIndirect are to source their arguments directly from the
+ * pointer passed as their <indirect> parameters."
+ */
+ if (ctx->API == API_OPENGL_COMPAT &&
+ !_mesa_is_bufferobj(ctx->DrawIndirectBuffer)) {
+ DrawArraysIndirectCommand *cmd = (DrawArraysIndirectCommand *) indirect;
+
+ vbo_exec_DrawArraysInstancedBaseInstance(mode, cmd->first, cmd->count,
+ cmd->primCount,
+ cmd->baseInstance);
+ return;
+ }
+
FLUSH_FOR_DRAW(ctx);
if (_mesa_is_no_error_enabled(ctx)) {
_mesa_enum_to_string(mode),
_mesa_enum_to_string(type), indirect);
+ /* From the ARB_draw_indirect spec:
+ *
+ * "Initially zero is bound to DRAW_INDIRECT_BUFFER. In the
+ * compatibility profile, this indicates that DrawArraysIndirect and
+ * DrawElementsIndirect are to source their arguments directly from the
+ * pointer passed as their <indirect> parameters."
+ */
+ if (ctx->API == API_OPENGL_COMPAT &&
+ !_mesa_is_bufferobj(ctx->DrawIndirectBuffer)) {
+ /*
+ * Unlike regular DrawElementsInstancedBaseVertex commands, the indices
+ * may not come from a client array and must come from an index buffer.
+ * If no element array buffer is bound, an INVALID_OPERATION error is
+ * generated.
+ */
+ if (!_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawElementsIndirect(no buffer bound "
+ "to GL_ELEMENT_ARRAY_BUFFER)");
+ } else {
+ DrawElementsIndirectCommand *cmd =
+ (DrawElementsIndirectCommand *) indirect;
+
+ /* Convert offset to pointer */
+ void *offset = (void *)
+ ((cmd->firstIndex * _mesa_sizeof_type(type)) & 0xffffffffUL);
+
+ vbo_exec_DrawElementsInstancedBaseVertexBaseInstance(mode, cmd->count,
+ type, offset,
+ cmd->primCount,
+ cmd->baseVertex,
+ cmd->baseInstance);
+ }
+
+ return;
+ }
+
FLUSH_FOR_DRAW(ctx);
if (_mesa_is_no_error_enabled(ctx)) {
/* If <stride> is zero, the array elements are treated as tightly packed. */
if (stride == 0)
- stride = 4 * sizeof(GLuint); /* sizeof(DrawArraysIndirectCommand) */
+ stride = sizeof(DrawArraysIndirectCommand);
+
+ /* From the ARB_draw_indirect spec:
+ *
+ * "Initially zero is bound to DRAW_INDIRECT_BUFFER. In the
+ * compatibility profile, this indicates that DrawArraysIndirect and
+ * DrawElementsIndirect are to source their arguments directly from the
+ * pointer passed as their <indirect> parameters."
+ */
+ if (ctx->API == API_OPENGL_COMPAT &&
+ !_mesa_is_bufferobj(ctx->DrawIndirectBuffer)) {
+
+ if (!_mesa_valid_draw_indirect_multi(ctx, primcount, stride,
+ "glMultiDrawArraysIndirect"))
+ return;
+
+ const ubyte *ptr = (const ubyte *) indirect;
+ for (unsigned i = 0; i < primcount; i++) {
+ DrawArraysIndirectCommand *cmd = (DrawArraysIndirectCommand *) ptr;
+ vbo_exec_DrawArraysInstancedBaseInstance(mode, cmd->first,
+ cmd->count, cmd->primCount,
+ cmd->baseInstance);
+
+ if (stride == 0) {
+ ptr += sizeof(DrawArraysIndirectCommand);
+ } else {
+ ptr += stride;
+ }
+ }
+
+ return;
+ }
FLUSH_FOR_DRAW(ctx);
/* If <stride> is zero, the array elements are treated as tightly packed. */
if (stride == 0)
- stride = 5 * sizeof(GLuint); /* sizeof(DrawElementsIndirectCommand) */
+ stride = sizeof(DrawElementsIndirectCommand);
+
+
+ /* From the ARB_draw_indirect spec:
+ *
+ * "Initially zero is bound to DRAW_INDIRECT_BUFFER. In the
+ * compatibility profile, this indicates that DrawArraysIndirect and
+ * DrawElementsIndirect are to source their arguments directly from the
+ * pointer passed as their <indirect> parameters."
+ */
+ if (ctx->API == API_OPENGL_COMPAT &&
+ !_mesa_is_bufferobj(ctx->DrawIndirectBuffer)) {
+ /*
+ * Unlike regular DrawElementsInstancedBaseVertex commands, the indices
+ * may not come from a client array and must come from an index buffer.
+ * If no element array buffer is bound, an INVALID_OPERATION error is
+ * generated.
+ */
+ if (!_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glMultiDrawElementsIndirect(no buffer bound "
+ "to GL_ELEMENT_ARRAY_BUFFER)");
+
+ return;
+ }
+
+ if (!_mesa_valid_draw_indirect_multi(ctx, primcount, stride,
+ "glMultiDrawArraysIndirect"))
+ return;
+
+ const ubyte *ptr = (const ubyte *) indirect;
+ for (unsigned i = 0; i < primcount; i++) {
+ vbo_exec_DrawElementsIndirect(mode, type, ptr);
+
+ if (stride == 0) {
+ ptr += sizeof(DrawElementsIndirectCommand);
+ } else {
+ ptr += stride;
+ }
+ }
+
+ return;
+ }
FLUSH_FOR_DRAW(ctx);
vbo_exec_DrawElementsInstancedBaseVertexBaseInstance);
}
- if (ctx->API == API_OPENGL_CORE || _mesa_is_gles31(ctx)) {
+ if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles31(ctx)) {
SET_DrawArraysIndirect(exec, vbo_exec_DrawArraysIndirect);
SET_DrawElementsIndirect(exec, vbo_exec_DrawElementsIndirect);
}
- if (ctx->API == API_OPENGL_CORE) {
- SET_MultiDrawArraysIndirect(exec, vbo_exec_MultiDrawArraysIndirect);
- SET_MultiDrawElementsIndirect(exec, vbo_exec_MultiDrawElementsIndirect);
- SET_MultiDrawArraysIndirectCountARB(exec,
- vbo_exec_MultiDrawArraysIndirectCount);
- SET_MultiDrawElementsIndirectCountARB(exec,
- vbo_exec_MultiDrawElementsIndirectCount);
- }
-
if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
SET_DrawArraysInstancedARB(exec, vbo_exec_DrawArraysInstanced);
SET_DrawElementsInstancedARB(exec, vbo_exec_DrawElementsInstanced);
vbo_exec_DrawTransformFeedbackInstanced);
SET_DrawTransformFeedbackStreamInstanced(exec,
vbo_exec_DrawTransformFeedbackStreamInstanced);
+ SET_MultiDrawArraysIndirect(exec, vbo_exec_MultiDrawArraysIndirect);
+ SET_MultiDrawElementsIndirect(exec, vbo_exec_MultiDrawElementsIndirect);
+ SET_MultiDrawArraysIndirectCountARB(exec,
+ vbo_exec_MultiDrawArraysIndirectCount);
+ SET_MultiDrawElementsIndirectCountARB(exec,
+ vbo_exec_MultiDrawElementsIndirectCount);
}
}
projects / mesa.git / blobdiff