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sync cogl-blit and cogl-texture with master

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This synchronizes parts of cogl-blit.c and cogl-texture.c with the
master branch to help with cherry picking patches.
This commit is contained in:
Robert Bragg 2013-01-18 19:32:24 +00:00
parent 272431e102
commit 14d8ec7cca
3 changed files with 53 additions and 48 deletions
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30
cogl/cogl-blit.c
View File

@ -63,8 +63,7 @@ _cogl_blit_texture_render_begin (CoglBlitData *data)
return FALSE;
}
cogl_push_framebuffer (fb);
cogl_object_unref (fb);
data->fb = fb;
dst_width = cogl_texture_get_width (data->dst_tex);
dst_height = cogl_texture_get_height (data->dst_tex);
@ -97,7 +96,7 @@ _cogl_blit_texture_render_begin (CoglBlitData *data)
cogl_pipeline_set_layer_texture (pipeline, 0, data->src_tex);
_cogl_push_source (pipeline, FALSE);
data->pipeline = pipeline;
return TRUE;
}
@ -111,15 +110,17 @@ _cogl_blit_texture_render_blit (CoglBlitData *data,
unsigned int width,
unsigned int height)
{
cogl_rectangle_with_texture_coords (dst_x, dst_y,
dst_x + width,
dst_y + height,
src_x / (float) data->src_width,
src_y / (float) data->src_height,
(src_x + width) /
(float) data->src_width,
(src_y + height) /
(float) data->src_height);
cogl_framebuffer_draw_textured_rectangle (data->fb,
data->pipeline,
dst_x, dst_y,
dst_x + width,
dst_y + height,
src_x / (float) data->src_width,
src_y / (float) data->src_height,
(src_x + width) /
(float) data->src_width,
(src_y + height) /
(float) data->src_height);
}
static void
@ -127,9 +128,6 @@ _cogl_blit_texture_render_end (CoglBlitData *data)
{
CoglContext *ctx = data->src_tex->context;
cogl_pop_source ();
cogl_pop_framebuffer ();
/* Attach the target texture to the texture render pipeline so that
we don't keep a reference to the source texture forever. This is
assuming that the destination texture will live for a long time
@ -140,6 +138,8 @@ _cogl_blit_texture_render_end (CoglBlitData *data)
hash table key such as for the ARBfp program cache. */
cogl_pipeline_set_layer_texture (ctx->blit_texture_pipeline, 0,
data->dst_tex);
cogl_object_unref (data->fb);
}
static CoglBool

5
cogl/cogl-blit.h
View File

@ -27,6 +27,7 @@
#include <glib.h>
#include "cogl-object-private.h"
#include "cogl-texture.h"
#include "cogl-framebuffer.h"
/* This structures and functions are used when a series of blits needs
to be performed between two textures. In this case there are
@ -67,7 +68,11 @@ struct _CoglBlitData
complete texture data in */
unsigned char *image_data;
CoglPixelFormat format;
int bpp;
CoglFramebuffer *fb;
CoglPipeline *pipeline;
};
void

66
cogl/cogl-texture.c
View File

@ -761,19 +761,20 @@ cogl_texture_set_region (CoglTexture *texture,
* glGetTexImage, but may be used as a fallback in some circumstances.
*/
static void
do_texture_draw_and_read (CoglTexture *texture,
CoglBitmap *target_bmp,
float *viewport)
do_texture_draw_and_read (CoglFramebuffer *fb,
CoglPipeline *pipeline,
CoglTexture *texture,
CoglBitmap *target_bmp,
float *viewport)
{
float rx1, ry1;
float rx2, ry2;
float tx1, ty1;
float tx2, ty2;
int bw, bh;
CoglBitmap *rect_bmp;
unsigned int tex_width, tex_height;
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
float rx1, ry1;
float rx2, ry2;
float tx1, ty1;
float tx2, ty2;
int bw, bh;
CoglBitmap *rect_bmp;
unsigned int tex_width, tex_height;
CoglContext *ctx = fb->context;
tex_width = cogl_texture_get_width (texture);
tex_height = cogl_texture_get_height (texture);
@ -813,11 +814,13 @@ do_texture_draw_and_read (CoglTexture *texture,
tx2 = (rx2 / (float) tex_width);
/* Draw a portion of texture */
cogl_rectangle_with_texture_coords (0, 0,
rx2 - rx1,
ry2 - ry1,
tx1, ty1,
tx2, ty2);
cogl_framebuffer_draw_textured_rectangle (fb,
pipeline,
0, 0,
rx2 - rx1,
ry2 - ry1,
tx1, ty1,
tx2, ty2);
/* Read into a temporary bitmap */
rect_bmp = _cogl_bitmap_new_with_malloc_buffer
@ -826,7 +829,7 @@ do_texture_draw_and_read (CoglTexture *texture,
COGL_PIXEL_FORMAT_RGBA_8888_PRE);
cogl_framebuffer_read_pixels_into_bitmap
(cogl_get_draw_framebuffer (),
(fb,
viewport[0], viewport[1],
COGL_READ_PIXELS_COLOR_BUFFER,
rect_bmp);
@ -853,23 +856,21 @@ do_texture_draw_and_read (CoglTexture *texture,
*/
CoglBool
_cogl_texture_draw_and_read (CoglTexture *texture,
CoglBitmap *target_bmp,
GLuint target_gl_format,
GLuint target_gl_type)
CoglBitmap *target_bmp,
GLuint target_gl_format,
GLuint target_gl_type)
{
int bpp;
CoglFramebuffer *framebuffer;
int bpp;
CoglFramebuffer *framebuffer = cogl_get_draw_framebuffer ();
float viewport[4];
CoglBitmap *alpha_bmp;
int target_width = cogl_bitmap_get_width (target_bmp);
int target_height = cogl_bitmap_get_height (target_bmp);
int target_rowstride = cogl_bitmap_get_rowstride (target_bmp);
_COGL_GET_CONTEXT (ctx, FALSE);
CoglContext *ctx = framebuffer->context;
bpp = _cogl_pixel_format_get_bytes_per_pixel (COGL_PIXEL_FORMAT_RGBA_8888);
framebuffer = cogl_get_draw_framebuffer ();
/* Viewport needs to have some size and be inside the window for this */
cogl_framebuffer_get_viewport4fv (framebuffer, viewport);
if (viewport[0] < 0 || viewport[1] < 0 ||
@ -900,8 +901,6 @@ _cogl_texture_draw_and_read (CoglTexture *texture,
NULL);
}
_cogl_push_source (ctx->texture_download_pipeline, FALSE);
cogl_pipeline_set_layer_texture (ctx->texture_download_pipeline, 0, texture);
cogl_pipeline_set_layer_combine (ctx->texture_download_pipeline,
@ -913,7 +912,9 @@ _cogl_texture_draw_and_read (CoglTexture *texture,
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
do_texture_draw_and_read (texture, target_bmp, viewport);
do_texture_draw_and_read (framebuffer,
ctx->texture_download_pipeline,
texture, target_bmp, viewport);
/* Check whether texture has alpha and framebuffer not */
/* FIXME: For some reason even if ALPHA_BITS is 8, the framebuffer
@ -955,7 +956,9 @@ _cogl_texture_draw_and_read (CoglTexture *texture,
"RGBA = REPLACE (TEXTURE[A])",
NULL);
do_texture_draw_and_read (texture, alpha_bmp, viewport);
do_texture_draw_and_read (framebuffer,
ctx->texture_download_pipeline,
texture, alpha_bmp, viewport);
/* Copy temp R to target A */
@ -986,9 +989,6 @@ _cogl_texture_draw_and_read (CoglTexture *texture,
cogl_framebuffer_pop_matrix (framebuffer);
_cogl_framebuffer_pop_projection (framebuffer);
/* restore the original pipeline */
cogl_pop_source ();
return TRUE;
}