| /* |
| Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. |
| |
| The Weather Channel (TM) funded Tungsten Graphics to develop the |
| initial release of the Radeon 8500 driver under the XFree86 license. |
| This notice must be preserved. |
| |
| Permission is hereby granted, free of charge, to any person obtaining |
| a copy of this software and associated documentation files (the |
| "Software"), to deal in the Software without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Software, and to |
| permit persons to whom the Software is furnished to do so, subject to |
| the following conditions: |
| |
| The above copyright notice and this permission notice (including the |
| next paragraph) shall be included in all copies or substantial |
| portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
| LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| |
| **************************************************************************/ |
| |
| /** |
| * \file |
| * |
| * \author Nicolai Haehnle <prefect_@gmx.net> |
| */ |
| |
| #ifndef __R300_CMDBUF_H__ |
| #define __R300_CMDBUF_H__ |
| |
| #include "r300_context.h" |
| |
| extern int r300FlushCmdBufLocked(r300ContextPtr r300, const char *caller); |
| extern int r300FlushCmdBuf(r300ContextPtr r300, const char *caller); |
| |
| extern void r300EmitState(r300ContextPtr r300); |
| |
| extern void r300InitCmdBuf(r300ContextPtr r300); |
| extern void r300DestroyCmdBuf(r300ContextPtr r300); |
| |
| /** |
| * Make sure that enough space is available in the command buffer |
| * by flushing if necessary. |
| * |
| * \param dwords The number of dwords we need to be free on the command buffer |
| */ |
| static INLINE void r300EnsureCmdBufSpace(r300ContextPtr r300, |
| int dwords, const char *caller) |
| { |
| assert(dwords < r300->cmdbuf.size); |
| |
| if (r300->cmdbuf.count_used + dwords > r300->cmdbuf.size) |
| r300FlushCmdBuf(r300, caller); |
| } |
| |
| /** |
| * Allocate the given number of dwords in the command buffer and return |
| * a pointer to the allocated area. |
| * When necessary, these functions cause a flush. r300AllocCmdBuf() also |
| * causes state reemission after a flush. This is necessary to ensure |
| * correct hardware state after an unlock. |
| */ |
| static INLINE uint32_t *r300RawAllocCmdBuf(r300ContextPtr r300, |
| int dwords, const char *caller) |
| { |
| uint32_t *ptr; |
| |
| r300EnsureCmdBufSpace(r300, dwords, caller); |
| |
| ptr = &r300->cmdbuf.cmd_buf[r300->cmdbuf.count_used]; |
| r300->cmdbuf.count_used += dwords; |
| return ptr; |
| } |
| |
| static INLINE uint32_t *r300AllocCmdBuf(r300ContextPtr r300, |
| int dwords, const char *caller) |
| { |
| uint32_t *ptr; |
| |
| r300EnsureCmdBufSpace(r300, dwords, caller); |
| |
| if (!r300->cmdbuf.count_used) { |
| if (RADEON_DEBUG & DEBUG_IOCTL) |
| fprintf(stderr, |
| "Reemit state after flush (from %s)\n", caller); |
| r300EmitState(r300); |
| } |
| |
| ptr = &r300->cmdbuf.cmd_buf[r300->cmdbuf.count_used]; |
| r300->cmdbuf.count_used += dwords; |
| return ptr; |
| } |
| |
| extern void r300EmitBlit(r300ContextPtr rmesa, |
| GLuint color_fmt, |
| GLuint src_pitch, |
| GLuint src_offset, |
| GLuint dst_pitch, |
| GLuint dst_offset, |
| GLint srcx, GLint srcy, |
| GLint dstx, GLint dsty, GLuint w, GLuint h); |
| |
| extern void r300EmitWait(r300ContextPtr rmesa, GLuint flags); |
| extern void r300EmitLOAD_VBPNTR(r300ContextPtr rmesa, int start); |
| extern void r300EmitVertexShader(r300ContextPtr rmesa); |
| extern void r300EmitPixelShader(r300ContextPtr rmesa); |
| |
| #endif /* __R300_CMDBUF_H__ */ |