| /* |
| * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved. |
| * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved. |
| * |
| * 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, sub license, |
| * 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 NON-INFRINGEMENT. IN NO EVENT SHALL |
| * VIA, S3 GRAPHICS, 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. |
| */ |
| |
| |
| #ifndef SAVAGE_IOCTL_H |
| #define SAVAGE_IOCTL_H |
| |
| #include "savagecontext.h" |
| |
| void savageFlushVertices( savageContextPtr mmesa ); |
| |
| unsigned int savageEmitEventLocked( savageContextPtr imesa, unsigned int flags ); |
| unsigned int savageEmitEvent( savageContextPtr imesa, unsigned int flags ); |
| void savageWaitEvent( savageContextPtr imesa, unsigned int event); |
| |
| void savageFlushCmdBufLocked( savageContextPtr imesa, GLboolean discard ); |
| void savageFlushCmdBuf( savageContextPtr imesa, GLboolean discard ); |
| |
| void savageDDInitIoctlFuncs( GLcontext *ctx ); |
| |
| void savageSwapBuffers( __DRIdrawablePrivate *dPriv ); |
| |
| #define WAIT_IDLE_EMPTY(imesa) do { \ |
| if (SAVAGE_DEBUG & DEBUG_VERBOSE_MSG) \ |
| fprintf (stderr, "WAIT_IDLE_EMPTY in %s\n", __FUNCTION__); \ |
| savageWaitEvent(imesa, \ |
| savageEmitEvent(imesa, SAVAGE_WAIT_2D|SAVAGE_WAIT_3D)); \ |
| } while (0) |
| |
| #define WAIT_IDLE_EMPTY_LOCKED(imesa) do { \ |
| if (SAVAGE_DEBUG & DEBUG_VERBOSE_MSG) \ |
| fprintf (stderr, "WAIT_IDLE_EMPTY_LOCKED in %s\n", __FUNCTION__); \ |
| savageWaitEvent(imesa, savageEmitEventLocked( \ |
| imesa, SAVAGE_WAIT_2D|SAVAGE_WAIT_3D)); \ |
| } while (0) |
| |
| #define FLUSH_BATCH(imesa) do { \ |
| if (SAVAGE_DEBUG & DEBUG_VERBOSE_MSG) \ |
| fprintf (stderr, "FLUSH_BATCH in %s\n", __FUNCTION__); \ |
| savageFlushVertices(imesa); \ |
| savageFlushCmdBuf(imesa, GL_FALSE); \ |
| } while (0) |
| |
| extern void savageGetDMABuffer( savageContextPtr imesa ); |
| |
| static INLINE |
| void savageReleaseIndexedVerts( savageContextPtr imesa ) |
| { |
| imesa->firstElt = -1; |
| } |
| |
| static INLINE |
| GLboolean savageHaveIndexedVerts( savageContextPtr imesa ) |
| { |
| return (imesa->firstElt != -1); |
| } |
| |
| static INLINE |
| u_int32_t *savageAllocVtxBuf( savageContextPtr imesa, GLuint words ) |
| { |
| struct savage_vtxbuf_t *buffer = imesa->vtxBuf; |
| u_int32_t *head; |
| |
| if (buffer == &imesa->dmaVtxBuf) { |
| if (!buffer->total) { |
| LOCK_HARDWARE(imesa); |
| savageGetDMABuffer(imesa); |
| UNLOCK_HARDWARE(imesa); |
| } else if (buffer->used + words > buffer->total) { |
| if (SAVAGE_DEBUG & DEBUG_VERBOSE_MSG) |
| fprintf (stderr, "... flushing DMA buffer in %s\n", |
| __FUNCTION__); |
| savageReleaseIndexedVerts(imesa); |
| savageFlushVertices(imesa); |
| LOCK_HARDWARE(imesa); |
| savageFlushCmdBufLocked(imesa, GL_TRUE); /* discard DMA buffer */ |
| savageGetDMABuffer(imesa); |
| UNLOCK_HARDWARE(imesa); |
| } |
| } else if (buffer->used + words > buffer->total) { |
| if (SAVAGE_DEBUG & DEBUG_VERBOSE_MSG) |
| fprintf (stderr, "... flushing client vertex buffer in %s\n", |
| __FUNCTION__); |
| savageReleaseIndexedVerts(imesa); |
| savageFlushVertices(imesa); |
| LOCK_HARDWARE(imesa); |
| savageFlushCmdBufLocked(imesa, GL_FALSE); /* free clientVtxBuf */ |
| UNLOCK_HARDWARE(imesa); |
| } |
| |
| head = &buffer->buf[buffer->used]; |
| |
| buffer->used += words; |
| return head; |
| } |
| |
| static INLINE |
| u_int32_t *savageAllocIndexedVerts( savageContextPtr imesa, GLuint n ) |
| { |
| u_int32_t *ret; |
| savageFlushVertices(imesa); |
| ret = savageAllocVtxBuf(imesa, n*imesa->HwVertexSize); |
| imesa->firstElt = imesa->vtxBuf->flushed / imesa->HwVertexSize; |
| imesa->vtxBuf->flushed = imesa->vtxBuf->used; |
| return ret; |
| } |
| |
| /* Flush Elts: |
| * - Complete the drawing command with the correct number of indices. |
| * - Actually allocate entries for the indices in the command buffer. |
| * (This allocation must succeed without wrapping the cmd buffer!) |
| */ |
| static INLINE |
| void savageFlushElts( savageContextPtr imesa ) |
| { |
| if (imesa->elts.cmd) { |
| GLuint qwords = (imesa->elts.n + 3) >> 2; |
| assert(imesa->cmdBuf.write - imesa->cmdBuf.base + qwords |
| <= imesa->cmdBuf.size); |
| imesa->cmdBuf.write += qwords; |
| |
| imesa->elts.cmd->idx.count = imesa->elts.n; |
| imesa->elts.cmd = NULL; |
| } |
| } |
| |
| /* Allocate a command buffer entry with <bytes> bytes of arguments: |
| * - implies savageFlushElts |
| */ |
| static INLINE |
| drm_savage_cmd_header_t *savageAllocCmdBuf( savageContextPtr imesa, GLuint bytes ) |
| { |
| drm_savage_cmd_header_t *ret; |
| GLuint qwords = ((bytes + 7) >> 3) + 1; /* round up */ |
| assert (qwords < imesa->cmdBuf.size); |
| |
| savageFlushElts(imesa); |
| |
| if (imesa->cmdBuf.write - imesa->cmdBuf.base + qwords > imesa->cmdBuf.size) |
| savageFlushCmdBuf(imesa, GL_FALSE); |
| |
| ret = (drm_savage_cmd_header_t *)imesa->cmdBuf.write; |
| imesa->cmdBuf.write += qwords; |
| return ret; |
| } |
| |
| /* Allocate Elts: |
| * - if it doesn't fit, flush the cmd buffer first |
| * - allocates the drawing command on the cmd buffer if there is no |
| * incomplete indexed drawing command yet |
| * - increments the number of elts. Final allocation is done in savageFlushElts |
| */ |
| static INLINE |
| u_int16_t *savageAllocElts( savageContextPtr imesa, GLuint n ) |
| { |
| u_int16_t *ret; |
| GLuint qwords; |
| assert (savageHaveIndexedVerts(imesa)); |
| |
| if (imesa->elts.cmd) |
| qwords = (imesa->elts.n + n + 3) >> 2; |
| else |
| qwords = ((n + 3) >> 2) + 1; |
| if (imesa->cmdBuf.write - imesa->cmdBuf.base + qwords > imesa->cmdBuf.size) |
| savageFlushCmdBuf(imesa, GL_FALSE); /* implies savageFlushElts */ |
| |
| if (!imesa->elts.cmd) { |
| savageFlushVertices(imesa); |
| imesa->elts.cmd = savageAllocCmdBuf(imesa, 0); |
| imesa->elts.cmd->idx.cmd = (imesa->vtxBuf == &imesa->dmaVtxBuf) ? |
| SAVAGE_CMD_DMA_IDX : SAVAGE_CMD_VB_IDX; |
| imesa->elts.cmd->idx.prim = imesa->HwPrim; |
| imesa->elts.cmd->idx.skip = imesa->skip; |
| imesa->elts.n = 0; |
| } |
| |
| ret = (u_int16_t *)(imesa->elts.cmd+1) + imesa->elts.n; |
| imesa->elts.n += n; |
| return ret; |
| } |
| |
| #endif |