+++ /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 "mtypes.h"
-#include "enums.h"
-#include "image.h"
-#include "teximage.h"
-#include "swrast/swrast.h"
-
-#include "intel_screen.h"
-#include "intel_context.h"
-#include "intel_batchbuffer.h"
-#include "intel_buffers.h"
-#include "intel_mipmap_tree.h"
-#include "intel_regions.h"
-#include "intel_fbo.h"
-#include "intel_tex.h"
-#include "intel_blit.h"
-#include "intel_pixel.h"
-
-#define FILE_DEBUG_FLAG DEBUG_TEXTURE
-
-/**
- * Get the intel_region which is the source for any glCopyTex[Sub]Image call.
- *
- * Do the best we can using the blitter. A future project is to use
- * the texture engine and fragment programs for these copies.
- */
-static const struct intel_region *
-get_teximage_source(struct intel_context *intel, GLenum internalFormat)
-{
- struct intel_renderbuffer *irb;
-
- DBG("%s %s\n", __FUNCTION__,
- _mesa_lookup_enum_by_nr(internalFormat));
-
- switch (internalFormat) {
- case GL_DEPTH_COMPONENT:
- case GL_DEPTH_COMPONENT16_ARB:
- irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH);
- if (irb && irb->region && irb->region->cpp == 2)
- return irb->region;
- return NULL;
- case GL_DEPTH24_STENCIL8_EXT:
- case GL_DEPTH_STENCIL_EXT:
- irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH);
- if (irb && irb->region && irb->region->cpp == 4)
- return irb->region;
- return NULL;
- case GL_RGBA:
- case GL_RGBA8:
- return intel_readbuf_region(intel);
- case GL_RGB:
- if (intel->intelScreen->cpp == 2)
- return intel_readbuf_region(intel);
- return NULL;
- default:
- return NULL;
- }
-}
-
-
-static GLboolean
-do_copy_texsubimage(struct intel_context *intel,
- struct intel_texture_image *intelImage,
- GLenum internalFormat,
- GLint dstx, GLint dsty,
- GLint x, GLint y, GLsizei width, GLsizei height)
-{
- GLcontext *ctx = &intel->ctx;
- const struct intel_region *src =
- get_teximage_source(intel, internalFormat);
-
- if (!intelImage->mt || !src) {
- DBG("%s fail %p %p\n", __FUNCTION__, intelImage->mt, src);
- return GL_FALSE;
- }
-
- intelFlush(ctx);
- LOCK_HARDWARE(intel);
- {
- GLuint image_offset = intel_miptree_image_offset(intelImage->mt,
- intelImage->face,
- intelImage->level);
- const GLint orig_x = x;
- const GLint orig_y = y;
- const struct gl_framebuffer *fb = ctx->DrawBuffer;
-
- if (_mesa_clip_to_region(fb->_Xmin, fb->_Ymin, fb->_Xmax, fb->_Ymax,
- &x, &y, &width, &height)) {
- /* Update dst for clipped src. Need to also clip the source rect.
- */
- dstx += x - orig_x;
- dsty += y - orig_y;
-
- if (ctx->ReadBuffer->Name == 0) {
- /* reading from a window, adjust x, y */
- __DRIdrawablePrivate *dPriv = intel->driDrawable;
- GLuint window_y;
- /* window_y = position of window on screen if y=0=bottom */
- window_y = intel->intelScreen->height - (dPriv->y + dPriv->h);
- y = window_y + y;
- x += dPriv->x;
- }
- else {
- /* reading from a FBO */
- /* invert Y */
- y = ctx->ReadBuffer->Height - y - 1;
- }
-
-
- /* A bit of fiddling to get the blitter to work with -ve
- * pitches. But we get a nice inverted blit this way, so it's
- * worth it:
- */
- intelEmitCopyBlit(intel,
- intelImage->mt->cpp,
- -src->pitch,
- src->buffer,
- src->height * src->pitch * src->cpp,
- intelImage->mt->pitch,
- intelImage->mt->region->buffer,
- image_offset,
- x, y + height, dstx, dsty, width, height,
- GL_COPY); /* ? */
-
- intel_batchbuffer_flush(intel->batch);
- }
- }
-
-
- UNLOCK_HARDWARE(intel);
-
-#if 0
- /* GL_SGIS_generate_mipmap -- this can be accelerated now.
- * XXX Add a ctx->Driver.GenerateMipmaps() function?
- */
- if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- intel_generate_mipmap(ctx, target,
- &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
- texObj);
- }
-#endif
-
- return GL_TRUE;
-}
-
-
-
-
-
-void
-intelCopyTexImage1D(GLcontext * ctx, GLenum target, GLint level,
- GLenum internalFormat,
- GLint x, GLint y, GLsizei width, GLint border)
-{
- struct gl_texture_unit *texUnit =
- &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- struct gl_texture_object *texObj =
- _mesa_select_tex_object(ctx, texUnit, target);
- struct gl_texture_image *texImage =
- _mesa_select_tex_image(ctx, texObj, target, level);
-
- if (border)
- goto fail;
-
- /* Setup or redefine the texture object, mipmap tree and texture
- * image. Don't populate yet.
- */
- ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
- width, border,
- GL_RGBA, CHAN_TYPE, NULL,
- &ctx->DefaultPacking, texObj, texImage);
-
- if (!do_copy_texsubimage(intel_context(ctx),
- intel_texture_image(texImage),
- internalFormat, 0, 0, x, y, width, 1))
- goto fail;
-
- return;
-
- fail:
- _swrast_copy_teximage1d(ctx, target, level, internalFormat, x, y,
- width, border);
-}
-
-void
-intelCopyTexImage2D(GLcontext * ctx, GLenum target, GLint level,
- GLenum internalFormat,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLint border)
-{
- struct gl_texture_unit *texUnit =
- &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- struct gl_texture_object *texObj =
- _mesa_select_tex_object(ctx, texUnit, target);
- struct gl_texture_image *texImage =
- _mesa_select_tex_image(ctx, texObj, target, level);
-
- if (border)
- goto fail;
-
- /* Setup or redefine the texture object, mipmap tree and texture
- * image. Don't populate yet.
- */
- ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
- width, height, border,
- GL_RGBA, CHAN_TYPE, NULL,
- &ctx->DefaultPacking, texObj, texImage);
-
-
- if (!do_copy_texsubimage(intel_context(ctx),
- intel_texture_image(texImage),
- internalFormat, 0, 0, x, y, width, height))
- goto fail;
-
- return;
-
- fail:
- _swrast_copy_teximage2d(ctx, target, level, internalFormat, x, y,
- width, height, border);
-}
-
-
-void
-intelCopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
- GLint xoffset, GLint x, GLint y, GLsizei width)
-{
- struct gl_texture_unit *texUnit =
- &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- struct gl_texture_object *texObj =
- _mesa_select_tex_object(ctx, texUnit, target);
- struct gl_texture_image *texImage =
- _mesa_select_tex_image(ctx, texObj, target, level);
- GLenum internalFormat = texImage->InternalFormat;
-
- /* XXX need to check <border> as in above function? */
-
- /* Need to check texture is compatible with source format.
- */
-
- if (!do_copy_texsubimage(intel_context(ctx),
- intel_texture_image(texImage),
- internalFormat, xoffset, 0, x, y, width, 1)) {
- _swrast_copy_texsubimage1d(ctx, target, level, xoffset, x, y, width);
- }
-}
-
-
-
-void
-intelCopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
- GLint xoffset, GLint yoffset,
- GLint x, GLint y, GLsizei width, GLsizei height)
-{
- struct gl_texture_unit *texUnit =
- &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- struct gl_texture_object *texObj =
- _mesa_select_tex_object(ctx, texUnit, target);
- struct gl_texture_image *texImage =
- _mesa_select_tex_image(ctx, texObj, target, level);
- GLenum internalFormat = texImage->InternalFormat;
-
-
- /* Need to check texture is compatible with source format.
- */
-
- if (!do_copy_texsubimage(intel_context(ctx),
- intel_texture_image(texImage),
- internalFormat,
- xoffset, yoffset, x, y, width, height)) {
-
- DBG("%s - fallback to swrast\n", __FUNCTION__);
-
- _swrast_copy_texsubimage2d(ctx, target, level,
- xoffset, yoffset, x, y, width, height);
- }
-}
projects / mesa.git / blobdiff