}
-/**
- * Use blitting to clear the renderbuffers named by 'flags'.
- * Note: we can't use the ctx->DrawBuffer->_ColorDrawBufferMask field
- * since that might include software renderbuffers or renderbuffers
- * which we're clearing with triangles.
- * \param mask bitmask of BUFFER_BIT_* values indicating buffers to clear
- */
-void
-intelClearWithBlit(GLcontext * ctx, GLbitfield mask)
-{
- struct intel_context *intel = intel_context(ctx);
- struct gl_framebuffer *fb = ctx->DrawBuffer;
- GLuint clear_depth;
- GLbitfield skipBuffers = 0;
- BATCH_LOCALS;
-
- DBG("%s %x\n", __FUNCTION__, mask);
- /*
- * Compute values for clearing the buffers.
- */
- clear_depth = 0;
- if (mask & BUFFER_BIT_DEPTH) {
- clear_depth = (GLuint) (fb->_DepthMax * ctx->Depth.Clear);
- }
- if (mask & BUFFER_BIT_STENCIL) {
- clear_depth |= (ctx->Stencil.Clear & 0xff) << 24;
- }
-
- /* If clearing both depth and stencil, skip BUFFER_BIT_STENCIL in
- * the loop below.
- */
- if ((mask & BUFFER_BIT_DEPTH) && (mask & BUFFER_BIT_STENCIL)) {
- skipBuffers = BUFFER_BIT_STENCIL;
- }
-
- /* XXX Move this flush/lock into the following conditional? */
- intelFlush(&intel->ctx);
- LOCK_HARDWARE(intel);
-
- if (intel->numClipRects) {
- GLint cx, cy, cw, ch;
- drm_clip_rect_t b;
-
- /* Get clear bounds after locking */
- cx = fb->_Xmin;
- cy = fb->_Ymin;
- cw = fb->_Xmax - cx;
- ch = fb->_Ymax - cy;
-
- if (fb->Name == 0) {
- /* clearing a window */
- /* flip top to bottom */
- b.x1 = cx;
- b.y1 = fb->Height - cy - ch;
- b.x2 = b.x1 + cw;
- b.y2 = b.y1 + ch;
- }
- else {
- /* clearing FBO */
- b.x1 = cx;
- b.y1 = cy;
- b.x2 = b.x1 + cw;
- b.y2 = b.y1 + ch;
- /* no change to mask */
- }
-
- {
- GLuint buf;
- GLuint clearMask = mask; /* use copy, since we modify it below */
- GLboolean all = (cw == fb->Width && ch == fb->Height);
-
- DBG("clear %d,%d..%d,%d, mask %x\n",
- b.x1, b.y1, b.x2, b.y2, mask);
-
- /* Loop over all renderbuffers */
- for (buf = 0; buf < BUFFER_COUNT && clearMask; buf++) {
- const GLbitfield bufBit = 1 << buf;
- if ((clearMask & bufBit) && !(bufBit & skipBuffers)) {
- /* OK, clear this renderbuffer */
- struct pipe_region *irb_region =
- intel_get_rb_region(fb, buf);
- struct _DriBufferObject *write_buffer =
- intel->pipe->region_buffer(intel->pipe, irb_region,
- all ? INTEL_WRITE_FULL :
- INTEL_WRITE_PART);
-
- GLuint clearVal;
- GLint pitch, cpp;
- GLuint BR13, CMD;
-
- ASSERT(irb_region);
-
- pitch = irb_region->pitch;
- cpp = irb_region->cpp;
-
- DBG("%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
- __FUNCTION__,
- irb_region->buffer, (pitch * cpp),
- irb_region->draw_offset,
- b.x1, b.y1, b.x2 - b.x1, b.y2 - b.y1);
-
-
- /* Setup the blit command */
- if (cpp == 4) {
- BR13 = (0xF0 << 16) | (pitch * cpp) | (1 << 24) | (1 << 25);
- if (buf == BUFFER_DEPTH || buf == BUFFER_STENCIL) {
- CMD = XY_COLOR_BLT_CMD;
- if (clearMask & BUFFER_BIT_DEPTH)
- CMD |= XY_COLOR_BLT_WRITE_RGB;
- if (clearMask & BUFFER_BIT_STENCIL)
- CMD |= XY_COLOR_BLT_WRITE_ALPHA;
- }
- else {
- /* clearing RGBA */
- CMD = (XY_COLOR_BLT_CMD |
- XY_COLOR_BLT_WRITE_ALPHA |
- XY_COLOR_BLT_WRITE_RGB);
- }
- }
- else {
- ASSERT(cpp == 2 || cpp == 0);
- BR13 = (0xF0 << 16) | (pitch * cpp) | (1 << 24);
- CMD = XY_COLOR_BLT_CMD;
- }
-
- if (buf == BUFFER_DEPTH || buf == BUFFER_STENCIL) {
- clearVal = clear_depth;
- }
- else {
- clearVal = (cpp == 4)
- ? intel->ClearColor8888 : intel->ClearColor565;
- }
- /*
- _mesa_debug(ctx, "hardware blit clear buf %d rb id %d\n",
- buf, irb->Base.Name);
- */
- intel_wait_flips(intel, INTEL_BATCH_NO_CLIPRECTS);
-
- BEGIN_BATCH(6, INTEL_BATCH_NO_CLIPRECTS);
- OUT_BATCH(CMD);
- OUT_BATCH(BR13);
- OUT_BATCH((b.y1 << 16) | b.x1);
- OUT_BATCH((b.y2 << 16) | b.x2);
- OUT_RELOC(write_buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
- DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE,
- irb_region->draw_offset);
- OUT_BATCH(clearVal);
- ADVANCE_BATCH();
- clearMask &= ~bufBit; /* turn off bit, for faster loop exit */
- }
- }
- }
- intel_batchbuffer_flush(intel->batch);
- }
-
- UNLOCK_HARDWARE(intel);
-}
#include "intel_depthstencil.h"
#include "intel_fbo.h"
#include "intel_mipmap_tree.h"
-#include "intel_regions.h"
#include "intel_tex.h"
#include "pipe/p_context.h"
* buffer pointer...
*/
static inline struct _DriBufferObject *
-dri_bo( struct softpipe_buffer_handle *bo )
+dri_bo( struct pipe_buffer_handle *bo )
{
return (struct _DriBufferObject *)bo;
}
-static inline struct softpipe_buffer_handle *
+static inline struct pipe_buffer_handle *
pipe_bo( struct _DriBufferObject *bo )
{
- return (struct softpipe_buffer_handle *)bo;
+ return (struct pipe_buffer_handle *)bo;
}
/* Turn a softpipe winsys into an intel/softpipe winsys:
/* Most callbacks map direcly onto dri_bufmgr operations:
*/
static void *intel_buffer_map(struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf )
+ struct pipe_buffer_handle *buf )
{
return driBOMap( dri_bo(buf),
DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0 );
}
static void intel_buffer_unmap(struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf)
+ struct pipe_buffer_handle *buf)
{
driBOUnmap( dri_bo(buf) );
}
-static struct softpipe_buffer_handle *
+static struct pipe_buffer_handle *
intel_buffer_reference(struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf)
+ struct pipe_buffer_handle *buf)
{
return pipe_bo( driBOReference( dri_bo(buf) ) );
}
static void intel_buffer_unreference(struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf)
+ struct pipe_buffer_handle **buf)
{
- driBOUnReference( dri_bo(buf) );
+ if (*buf) {
+ driBOUnReference( dri_bo(*buf) );
+ *buf = NULL;
+ }
}
/* Grabs the hardware lock!
*/
static void intel_buffer_data(struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf,
+ struct pipe_buffer_handle *buf,
unsigned size, const void *data )
{
struct intel_context *intel = intel_softpipe_winsys(sws)->intel;
}
static void intel_buffer_subdata(struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf,
+ struct pipe_buffer_handle *buf,
unsigned long offset,
unsigned long size,
const void *data)
}
static void intel_buffer_get_subdata(struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf,
+ struct pipe_buffer_handle *buf,
unsigned long offset,
unsigned long size,
void *data)
/* Softpipe has no concept of pools. We choose the tex/region pool
* for all buffers.
*/
-static struct softpipe_buffer_handle *
+static struct pipe_buffer_handle *
intel_create_buffer(struct softpipe_winsys *sws,
- const char *name,
unsigned alignment)
{
struct intel_context *intel = intel_softpipe_winsys(sws)->intel;
LOCK_HARDWARE( intel );
driGenBuffers( intel->intelScreen->regionPool,
- name, 1, &buffer, alignment, 0, 0 );
+ "softpipe buffer", 1, &buffer, alignment, 0, 0 );
UNLOCK_HARDWARE( intel );
return pipe_bo(buffer);
#include "intel_context.h"
#include "intel_buffers.h"
-#include "intel_regions.h"
#include "intel_fbo.h"
#include "pipe/p_state.h"
{
struct _DriBufferObject *src_buffer =
intel_bufferobj_buffer(intel, pbo, INTEL_READ);
+
+ /* Temporary hack: cast to _DriBufferObject:
+ */
struct _DriBufferObject *dst_buffer =
- intel->pipe->region_buffer(intel->pipe, intelImage->mt->region,
- INTEL_WRITE_FULL);
+ (struct _DriBufferObject *)intelImage->mt->region->buffer;
intelEmitCopyBlit(intel,
depend: $(C_SOURCES) $(ASM_SOURCES) $(SYMLINKS)
+ rm -f depend
touch depend
$(MKDEP) $(MKDEP_OPTIONS) $(DRIVER_DEFINES) $(INCLUDES) $(C_SOURCES) \
$(ASM_SOURCES) 2> /dev/null
GLuint width, GLuint height,
GLuint value);
- struct _DriBufferObject *(*region_buffer)(struct pipe_context *pipe,
- struct pipe_region *region,
- GLuint flag);
+
+ /* Buffer management functions need to be exposed as well. A pipe
+ * buffer may be used as a texture, render target or vertex/index
+ * buffer, or some combination according to flags.
+ */
+
+ struct pipe_buffer_handle *(*create_buffer)(struct pipe_context *pipe,
+ unsigned alignment,
+ unsigned flags );
+
+ void *(*buffer_map)( struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf,
+ unsigned flags );
+
+ void (*buffer_unmap)( struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf );
+
+ struct pipe_buffer_handle *(*buffer_reference)( struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf );
+
+ void (*buffer_unreference)( struct pipe_context *pipe,
+ struct pipe_buffer_handle **buf );
+
+ void (*buffer_data)(struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf,
+ unsigned size, const void *data );
+
+ void (*buffer_subdata)(struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf,
+ unsigned long offset,
+ unsigned long size,
+ const void *data);
+
+ void (*buffer_get_subdata)(struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf,
+ unsigned long offset,
+ unsigned long size,
+ void *data);
};
};
+struct pipe_buffer_handle;
+
+#define PIPE_BUFFER_FLAG_READ 0x1
+#define PIPE_BUFFER_FLAG_WRITE 0x2
+
+#define PIPE_BUFFER_USE_TEXTURE 0x1
+#define PIPE_BUFFER_USE_VERTEX_BUFFER 0x2
+#define PIPE_BUFFER_USE_INDEX_BUFFER 0x4
+#define PIPE_BUFFER_USE_RENDER_TARGET 0x8
+
+
+
+
#endif
LIBNAME = softpipe
DRIVER_SOURCES = \
+ sp_buffer.c \
sp_clear.c \
sp_context.c \
sp_prim_setup.c \
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ *
+ **************************************************************************/
+/*
+ * Authors: Keith Whitwell <keithw-at-tungstengraphics-dot-com>
+ */
+
+#include <stdlib.h>
+#include "sp_context.h"
+#include "sp_winsys.h"
+
+
+
+/* Most callbacks map direcly onto winsys operations:
+ */
+static struct pipe_buffer_handle *
+sp_create_buffer(struct pipe_context *pipe,
+ unsigned alignment,
+ unsigned flags)
+{
+ struct softpipe_context *sp = softpipe_context( pipe );
+ return sp->winsys->create_buffer( sp->winsys, alignment );
+}
+
+static void *sp_buffer_map(struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf,
+ unsigned flags )
+{
+ struct softpipe_context *sp = softpipe_context( pipe );
+ return sp->winsys->buffer_map( sp->winsys, buf );
+}
+
+static void sp_buffer_unmap(struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf)
+{
+ struct softpipe_context *sp = softpipe_context( pipe );
+ sp->winsys->buffer_unmap( sp->winsys, buf );
+}
+
+static struct pipe_buffer_handle *
+sp_buffer_reference(struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf)
+{
+ struct softpipe_context *sp = softpipe_context( pipe );
+ return sp->winsys->buffer_reference( sp->winsys, buf );
+}
+
+static void sp_buffer_unreference(struct pipe_context *pipe,
+ struct pipe_buffer_handle **buf)
+{
+ struct softpipe_context *sp = softpipe_context( pipe );
+ sp->winsys->buffer_unreference( sp->winsys, buf );
+}
+
+static void sp_buffer_data(struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf,
+ unsigned size, const void *data )
+{
+ struct softpipe_context *sp = softpipe_context( pipe );
+ sp->winsys->buffer_data( sp->winsys, buf, size, data );
+}
+
+static void sp_buffer_subdata(struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf,
+ unsigned long offset,
+ unsigned long size,
+ const void *data)
+{
+ struct softpipe_context *sp = softpipe_context( pipe );
+ sp->winsys->buffer_subdata( sp->winsys, buf, offset, size, data );
+}
+
+static void sp_buffer_get_subdata(struct pipe_context *pipe,
+ struct pipe_buffer_handle *buf,
+ unsigned long offset,
+ unsigned long size,
+ void *data)
+{
+ struct softpipe_context *sp = softpipe_context( pipe );
+ sp->winsys->buffer_get_subdata( sp->winsys, buf, offset, size, data );
+}
+
+
+void
+sp_init_buffer_functions( struct softpipe_context *sp )
+{
+ sp->pipe.create_buffer = sp_create_buffer;
+ sp->pipe.buffer_map = sp_buffer_map;
+ sp->pipe.buffer_unmap = sp_buffer_unmap;
+ sp->pipe.buffer_reference = sp_buffer_reference;
+ sp->pipe.buffer_unreference = sp_buffer_unreference;
+ sp->pipe.buffer_data = sp_buffer_data;
+ sp->pipe.buffer_subdata = sp_buffer_subdata;
+ sp->pipe.buffer_get_subdata = sp_buffer_get_subdata;
+}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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 SP_BUFFER_H
+#define SP_BUFFER_H
+
+
+struct softpipe_context;
+
+
+extern void
+sp_init_buffer_functions(struct softpipe_context *sp);
+
+
+#endif /* SP_BUFFER_H */
#include "sp_context.h"
#include "sp_clear.h"
#include "sp_region.h"
+#include "sp_buffer.h"
#include "sp_state.h"
#include "sp_surface.h"
#include "sp_prim_setup.h"
assert(softpipe->draw);
draw_set_setup_stage(softpipe->draw, sp_draw_render_stage(softpipe));
+ sp_init_buffer_functions(softpipe);
sp_init_region_functions(softpipe);
sp_init_surface_functions(softpipe);
region->height = height; /* needed? */
region->refcount = 1;
- region->buffer = sp->winsys->create_buffer(sp->winsys, "region", 64 );
+ region->buffer = sp->winsys->create_buffer( sp->winsys, 64 );
sp->winsys->buffer_data( sp->winsys,
region->buffer,
-static struct _DriBufferObject *
-sp_region_buffer(struct pipe_context *pipe,
- struct pipe_region *region, GLuint flag)
-{
- return region->buffer;
-}
-
void
sp->pipe.region_data = sp_region_data;
sp->pipe.region_copy = sp_region_copy;
sp->pipe.region_fill = sp_region_fill;
- sp->pipe.region_buffer = sp_region_buffer;
}
* etc.
*/
-struct softpipe_buffer_handle;
+struct pipe_buffer_handle;
struct softpipe_winsys {
* Softpipe only really wants to make system memory allocations,
* right??
*/
- struct softpipe_buffer_handle *(*create_buffer)(struct softpipe_winsys *sws,
- const char *name,
- unsigned alignment );
+ struct pipe_buffer_handle *(*create_buffer)(struct softpipe_winsys *sws,
+ unsigned alignment );
void *(*buffer_map)( struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf );
+ struct pipe_buffer_handle *buf );
void (*buffer_unmap)( struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf );
+ struct pipe_buffer_handle *buf );
- struct softpipe_buffer_handle *(*buffer_reference)( struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf );
+ struct pipe_buffer_handle *(*buffer_reference)( struct softpipe_winsys *sws,
+ struct pipe_buffer_handle *buf );
void (*buffer_unreference)( struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf );
+ struct pipe_buffer_handle **buf );
void (*buffer_data)(struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf,
+ struct pipe_buffer_handle *buf,
unsigned size, const void *data );
void (*buffer_subdata)(struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf,
+ struct pipe_buffer_handle *buf,
unsigned long offset,
unsigned long size,
const void *data);
void (*buffer_get_subdata)(struct softpipe_winsys *sws,
- struct softpipe_buffer_handle *buf,
+ struct pipe_buffer_handle *buf,
unsigned long offset,
unsigned long size,
void *data);
state_tracker/st_cb_fbo.c \
state_tracker/st_cb_program.c \
state_tracker/st_cb_teximage.c \
+ state_tracker/st_cb_bufferobjects.c \
state_tracker/st_draw.c \
state_tracker/st_context.c \
state_tracker/st_texobj.c
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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.
+ *
+ **************************************************************************/
+
+
+#include "imports.h"
+#include "mtypes.h"
+#include "bufferobj.h"
+
+#include "st_context.h"
+#include "st_cb_bufferobjects.h"
+
+#include "pipe/p_context.h"
+
+/* Pixel buffers and Vertex/index buffers are handled through these
+ * mesa callbacks. Framebuffer/Renderbuffer objects are
+ * created/managed elsewhere.
+ */
+
+
+
+/**
+ * There is some duplication between mesa's bufferobjects and our
+ * bufmgr buffers. Both have an integer handle and a hashtable to
+ * lookup an opaque structure. It would be nice if the handles and
+ * internal structure where somehow shared.
+ */
+static struct gl_buffer_object *
+st_bufferobj_alloc(GLcontext *ctx, GLuint name, GLenum target)
+{
+ struct st_context *st = st_context(ctx);
+ struct st_buffer_object *st_obj = CALLOC_STRUCT(st_buffer_object);
+
+ _mesa_initialize_buffer_object(&st_obj->Base, name, target);
+
+ st_obj->buffer = st->pipe->create_buffer( st->pipe, 32, 0 );
+
+ return &st_obj->Base;
+}
+
+
+
+/**
+ * Deallocate/free a vertex/pixel buffer object.
+ * Called via glDeleteBuffersARB().
+ */
+static void
+st_bufferobj_free(GLcontext *ctx, struct gl_buffer_object *obj)
+{
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct st_buffer_object *st_obj = st_buffer_object(obj);
+
+ if (st_obj->buffer)
+ pipe->buffer_unreference(pipe, &st_obj->buffer);
+
+ FREE(st_obj);
+}
+
+
+
+/**
+ * Allocate space for and store data in a buffer object. Any data that was
+ * previously stored in the buffer object is lost. If data is NULL,
+ * memory will be allocated, but no copy will occur.
+ * Called via glBufferDataARB().
+ */
+static void
+st_bufferobj_data(GLcontext *ctx,
+ GLenum target,
+ GLsizeiptrARB size,
+ const GLvoid * data,
+ GLenum usage,
+ struct gl_buffer_object *obj)
+{
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct st_buffer_object *st_obj = st_buffer_object(obj);
+
+ st_obj->Base.Size = size;
+ st_obj->Base.Usage = usage;
+
+ pipe->buffer_data( pipe, st_obj->buffer, size, data );
+}
+
+
+/**
+ * Replace data in a subrange of buffer object. If the data range
+ * specified by size + offset extends beyond the end of the buffer or
+ * if data is NULL, no copy is performed.
+ * Called via glBufferSubDataARB().
+ */
+static void
+st_bufferobj_subdata(GLcontext *ctx,
+ GLenum target,
+ GLintptrARB offset,
+ GLsizeiptrARB size,
+ const GLvoid * data, struct gl_buffer_object *obj)
+{
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct st_buffer_object *st_obj = st_buffer_object(obj);
+
+ pipe->buffer_subdata(pipe, st_obj->buffer, offset, size, data);
+}
+
+
+/**
+ * Called via glGetBufferSubDataARB().
+ */
+static void
+st_bufferobj_get_subdata(GLcontext *ctx,
+ GLenum target,
+ GLintptrARB offset,
+ GLsizeiptrARB size,
+ GLvoid * data, struct gl_buffer_object *obj)
+{
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct st_buffer_object *st_obj = st_buffer_object(obj);
+
+ pipe->buffer_get_subdata(pipe, st_obj->buffer, offset, size, data);
+}
+
+
+
+/**
+ * Called via glMapBufferARB().
+ */
+static void *
+st_bufferobj_map(GLcontext *ctx,
+ GLenum target,
+ GLenum access, struct gl_buffer_object *obj)
+{
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct st_buffer_object *st_obj = st_buffer_object(obj);
+ GLuint flags;
+
+ switch (access) {
+ case GL_WRITE_ONLY:
+ flags = PIPE_BUFFER_FLAG_WRITE;
+ break;
+
+
+ flags = PIPE_BUFFER_FLAG_READ;
+ break;
+
+ case GL_READ_WRITE:
+ default:
+ flags = PIPE_BUFFER_FLAG_READ | PIPE_BUFFER_FLAG_WRITE;
+ break;
+ }
+
+ obj->Pointer = pipe->buffer_map(pipe, st_obj->buffer, flags);
+ return obj->Pointer;
+}
+
+
+/**
+ * Called via glMapBufferARB().
+ */
+static GLboolean
+st_bufferobj_unmap(GLcontext *ctx,
+ GLenum target, struct gl_buffer_object *obj)
+{
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct st_buffer_object *st_obj = st_buffer_object(obj);
+
+ pipe->buffer_unmap(pipe, st_obj->buffer);
+ obj->Pointer = NULL;
+ return GL_TRUE;
+}
+
+
+void
+st_init_cb_bufferobjects( struct st_context *st )
+{
+ GLcontext *ctx = st->ctx;
+
+ ctx->Driver.NewBufferObject = st_bufferobj_alloc;
+ ctx->Driver.DeleteBuffer = st_bufferobj_free;
+ ctx->Driver.BufferData = st_bufferobj_data;
+ ctx->Driver.BufferSubData = st_bufferobj_subdata;
+ ctx->Driver.GetBufferSubData = st_bufferobj_get_subdata;
+ ctx->Driver.MapBuffer = st_bufferobj_map;
+ ctx->Driver.UnmapBuffer = st_bufferobj_unmap;
+}
--- /dev/null
+ /**************************************************************************
+ *
+ * Copyright 2005 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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 ST_CB_BUFFEROBJECTS_H
+#define ST_CB_BUFFEROBJECTS_H
+
+struct st_context;
+struct gl_buffer_object;
+struct pipe_buffer_handle;
+
+/**
+ * State_tracker vertex/pixel buffer object, derived from Mesa's
+ * gl_buffer_object.
+ */
+struct st_buffer_object
+{
+ struct gl_buffer_object Base;
+ struct pipe_buffer_handle *buffer;
+};
+
+
+/* Hook the bufferobject implementation into mesa:
+ */
+void st_init_cb_bufferobjects( struct st_context *st );
+
+
+/* Are the obj->Name tests necessary? Unfortunately yes, mesa
+ * allocates a couple of gl_buffer_object structs statically, and the
+ * Name == 0 test is the only way to identify them and avoid casting
+ * them erroneously to our structs.
+ */
+static INLINE struct st_buffer_object *
+st_buffer_object(struct gl_buffer_object *obj)
+{
+ if (obj->Name)
+ return (struct st_buffer_object *) obj;
+ else
+ return NULL;
+}
+
+
+#endif
projects / mesa.git / commitdiff