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Merge branch 'master' into async-textures

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This commit is contained in:
Emmanuele Bassi 2009-01-12 14:43:53 +00:00
commit 743b5c03dc
13 changed files with 526 additions and 326 deletions
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23
cogl-texture.h
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@ -427,6 +427,29 @@ CoglBitmap * cogl_bitmap_new_from_file (const gchar *filename,
*/
void cogl_bitmap_free (CoglBitmap *bmp);
/**
* cogl_texture_multiple_rectangles:
* @handle: a @CoglHandle.
* @verts: an array of vertices
* @n_rects: number of rectangles to draw
*
* Draws a series of rectangles in the same way that
* cogl_texture_rectangle() does. In some situations it can give a
* significant performance boost to use this function rather than
* calling cogl_texture_rectangle() separately for each rectangle.
*
* @verts should point to an array of #CoglFixed<!-- -->s with
* @n_rects * 8 elements. Each group of 8 values corresponds to the
* parameters x1, y1, x2, y2, tx1, ty1, tx2 and ty2 and have the same
* meaning as in cogl_texture_rectangle().
*
* Since: 1.0
*/
void cogl_texture_multiple_rectangles
(CoglHandle handle,
const CoglFixed *verts,
guint n_rects);
G_END_DECLS
#endif /* __COGL_TEXTURE_H__ */

72
cogl-types.h
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@ -93,27 +93,29 @@ typedef struct _CoglTextureVertex CoglTextureVertex;
/**
* CoglPixelFormat:
* @COGL_PIXEL_FORMAT_ANY:
* @COGL_PIXEL_FORMAT_A_8:
* @COGL_PIXEL_FORMAT_RGB_888:
* @COGL_PIXEL_FORMAT_BGR_888:
* @COGL_PIXEL_FORMAT_RGBA_8888:
* @COGL_PIXEL_FORMAT_BGRA_8888:
* @COGL_PIXEL_FORMAT_ARGB_8888:
* @COGL_PIXEL_FORMAT_ABGR_8888:
* @COGL_PIXEL_FORMAT_RGBA_8888_PRE:
* @COGL_PIXEL_FORMAT_BGRA_8888_PRE:
* @COGL_PIXEL_FORMAT_ARGB_8888_PRE:
* @COGL_PIXEL_FORMAT_ABGR_8888_PRE:
* @COGL_PIXEL_FORMAT_RGB_565:
* @COGL_PIXEL_FORMAT_RGBA_4444:
* @COGL_PIXEL_FORMAT_RGBA_5551:
* @COGL_PIXEL_FORMAT_RGBA_4444_PRE:
* @COGL_PIXEL_FORMAT_RGBA_5551_PRE:
* @COGL_PIXEL_FORMAT_YUV:
* @COGL_PIXEL_FORMAT_G_8:
* @COGL_PIXEL_FORMAT_ANY: Any format
* @COGL_PIXEL_FORMAT_A_8: 8 bits alpha mask
* @COGL_PIXEL_FORMAT_RGB_565: RGB, 16 bits
* @COGL_PIXEL_FORMAT_RGBA_4444: RGBA, 16 bits
* @COGL_PIXEL_FORMAT_RGBA_5551: RGBA, 16 bits
* @COGL_PIXEL_FORMAT_YUV: FIXME
* @COGL_PIXEL_FORMAT_G_8: FIXME
* @COGL_PIXEL_FORMAT_RGB_888: RGB, 24 bits
* @COGL_PIXEL_FORMAT_BGR_888: BGR, 24 bits
* @COGL_PIXEL_FORMAT_RGBA_8888: RGBA, 32 bits
* @COGL_PIXEL_FORMAT_BGRA_8888: BGRA, 32 bits
* @COGL_PIXEL_FORMAT_ARGB_8888: ARGB, 32 bits
* @COGL_PIXEL_FORMAT_ABGR_8888: ABGR, 32 bits
* @COGL_PIXEL_FORMAT_RGBA_8888_PRE: Premultiplied RGBA, 32 bits
* @COGL_PIXEL_FORMAT_BGRA_8888_PRE: Premultiplied BGRA, 32 bits
* @COGL_PIXEL_FORMAT_ARGB_8888_PRE: Premultiplied ARGB, 32 bits
* @COGL_PIXEL_FORMAT_ABGR_8888_PRE: Premultiplied ABGR, 32 bits
* @COGL_PIXEL_FORMAT_RGBA_4444_PRE: Premultiplied RGBA, 16 bits
* @COGL_PIXEL_FORMAT_RGBA_5551_PRE: Premultiplied RGBA, 16 bits
*
* Pixel formats used by COGL.
*
* Since: 0.8
*/
typedef enum
{
@ -180,19 +182,21 @@ typedef enum
/**
* CoglFeatureFlags:
* @COGL_FEATURE_TEXTURE_RECTANGLE:
* @COGL_FEATURE_TEXTURE_NPOT:
* @COGL_FEATURE_TEXTURE_YUV:
* @COGL_FEATURE_TEXTURE_READ_PIXELS:
* @COGL_FEATURE_SHADERS_GLSL:
* @COGL_FEATURE_OFFSCREEN:
* @COGL_FEATURE_OFFSCREEN_MULTISAMPLE:
* @COGL_FEATURE_OFFSCREEN_BLIT:
* @COGL_FEATURE_FOUR_CLIP_PLANES:
* @COGL_FEATURE_STENCIL_BUFFER:
* @COGL_FEATURE_VBOS:
* @COGL_FEATURE_TEXTURE_RECTANGLE: ARB_texture_rectangle support
* @COGL_FEATURE_TEXTURE_NPOT: ARB_texture_non_power_of_two support
* @COGL_FEATURE_TEXTURE_YUV: ycbcr conversion support
* @COGL_FEATURE_TEXTURE_READ_PIXELS: glReadPixels() support
* @COGL_FEATURE_SHADERS_GLSL: GLSL support
* @COGL_FEATURE_OFFSCREEN: FBO support
* @COGL_FEATURE_OFFSCREEN_MULTISAMPLE: Multisample support on FBOs
* @COGL_FEATURE_OFFSCREEN_BLIT: Blit support on FBOs
* @COGL_FEATURE_FOUR_CLIP_PLANES: At least 4 clip planes available
* @COGL_FEATURE_STENCIL_BUFFER: Stencil buffer support
* @COGL_FEATURE_VBOS: VBO support
*
* Flags for the supported features.
*
* Since: 0.8
*/
typedef enum
{
@ -211,11 +215,13 @@ typedef enum
/**
* CoglBufferTarget:
* @COGL_WINDOW_BUFFER:
* @COGL_MASK_BUFFER:
* @COGL_OFFSCREEN_BUFFER:
* @COGL_WINDOW_BUFFER: FIXME
* @COGL_MASK_BUFFER: FIXME
* @COGL_OFFSCREEN_BUFFER: FIXME
*
* Target flags for FBOs.
*
* Since: 0.8
*/
typedef enum
{

1
common/Makefile.am
View File

@ -5,6 +5,7 @@ INCLUDES = \
-I$(top_srcdir)/clutter/cogl/$(CLUTTER_COGL) \
-I$(top_builddir)/clutter \
-I$(top_builddir)/clutter/cogl \
-DG_LOG_DOMAIN=\"Cogl-Common\" \
-DCLUTTER_COMPILATION \
$(CLUTTER_CFLAGS) \
$(CLUTTER_DEBUG_CFLAGS) \

2
common/cogl-mesh.c
View File

@ -209,6 +209,8 @@ COGL_HANDLE_DEFINE (Mesh, mesh, mesh_handles);
*
* This creates a Cogl handle for a new mesh that you can then start to add
* attributes too.
*
* Return value: a new #CoglHandle
*/
CoglHandle
cogl_mesh_new (guint n_vertices)

1
doc/reference/cogl/cogl-sections.txt
View File

@ -120,6 +120,7 @@ cogl_texture_set_region
cogl_texture_ref
cogl_texture_unref
cogl_texture_rectangle
cogl_texture_multiple_rectangles
cogl_texture_polygon
</SECTION>

1
gl/Makefile.am
View File

@ -20,6 +20,7 @@ INCLUDES = \
-I$(top_srcdir)/clutter/cogl/$(CLUTTER_COGL) \
-I$(top_builddir)/clutter \
-I$(top_builddir)/clutter/cogl \
-DG_LOG_DOMAIN=\"Cogl-GL\" \
-DCLUTTER_COMPILATION \
$(CLUTTER_CFLAGS) \
$(CLUTTER_DEBUG_CFLAGS) \

11
gl/cogl-context.c
View File

@ -56,8 +56,10 @@ cogl_create_context ()
_context->last_path = 0;
_context->texture_handles = NULL;
_context->texture_vertices_size = 0;
_context->texture_vertices = NULL;
_context->texture_vertices = g_array_new (FALSE, FALSE,
sizeof (CoglTextureGLVertex));
_context->texture_indices = g_array_new (FALSE, FALSE,
sizeof (GLushort));
_context->fbo_handles = NULL;
_context->draw_buffer = COGL_WINDOW_BUFFER;
@ -148,6 +150,11 @@ cogl_destroy_context ()
if (_context->program_handles)
g_array_free (_context->program_handles, TRUE);
if (_context->texture_vertices)
g_array_free (_context->texture_vertices, TRUE);
if (_context->texture_indices)
g_array_free (_context->texture_indices, TRUE);
g_free (_context);
}

10
gl/cogl-context.h
View File

@ -63,8 +63,14 @@ typedef struct
/* Textures */
GArray *texture_handles;
CoglTextureGLVertex *texture_vertices;
gulong texture_vertices_size;
GArray *texture_vertices;
GArray *texture_indices;
/* The gl texture number that the above vertices apply to. This to
detect when a different slice is encountered so that the vertices
can be flushed */
GLuint texture_current;
GLenum texture_target;
GLenum texture_wrap_mode;
/* Framebuffer objects */
GArray *fbo_handles;

347
gl/cogl-texture.c
View File

@ -1919,6 +1919,95 @@ cogl_texture_get_data (CoglHandle handle,
return byte_size;
}
static void
_cogl_texture_flush_vertices (void)
{
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
if (ctx->texture_vertices->len > 0)
{
int needed_indices;
CoglTextureGLVertex *p
= (CoglTextureGLVertex *) ctx->texture_vertices->data;
/* The indices are always the same sequence regardless of the
vertices so we only need to change it if there are more
vertices than ever before */
needed_indices = ctx->texture_vertices->len / 4 * 6;
if (needed_indices > ctx->texture_indices->len)
{
int old_len = ctx->texture_indices->len;
int vert_num = old_len / 6 * 4;
int i;
GLushort *q;
/* Add two triangles for each quad to the list of
indices. That makes six new indices but two of the
vertices in the triangles are shared. */
g_array_set_size (ctx->texture_indices, needed_indices);
q = &g_array_index (ctx->texture_indices, GLushort, old_len);
for (i = old_len;
i < ctx->texture_indices->len;
i += 6, vert_num += 4)
{
*(q++) = vert_num + 0;
*(q++) = vert_num + 1;
*(q++) = vert_num + 3;
*(q++) = vert_num + 1;
*(q++) = vert_num + 2;
*(q++) = vert_num + 3;
}
}
GE( glVertexPointer (2, GL_FLOAT,
sizeof (CoglTextureGLVertex), p->v ) );
GE( glTexCoordPointer (2, GL_FLOAT,
sizeof (CoglTextureGLVertex), p->t ) );
GE( glBindTexture (ctx->texture_target, ctx->texture_current) );
GE( ctx->pf_glDrawRangeElements (GL_TRIANGLES,
0, ctx->texture_vertices->len - 1,
needed_indices,
GL_UNSIGNED_SHORT,
ctx->texture_indices->data) );
g_array_set_size (ctx->texture_vertices, 0);
}
}
static void
_cogl_texture_add_quad_vertices (GLfloat x1, GLfloat y1,
GLfloat x2, GLfloat y2,
GLfloat tx1, GLfloat ty1,
GLfloat tx2, GLfloat ty2)
{
CoglTextureGLVertex *p;
GLushort first_vert;
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
/* Add the four vertices of the quad to the list of queued
vertices */
first_vert = ctx->texture_vertices->len;
g_array_set_size (ctx->texture_vertices, first_vert + 4);
p = &g_array_index (ctx->texture_vertices, CoglTextureGLVertex, first_vert);
p->v[0] = x1; p->v[1] = y1;
p->t[0] = tx1; p->t[1] = ty1;
p++;
p->v[0] = x1; p->v[1] = y2;
p->t[0] = tx1; p->t[1] = ty2;
p++;
p->v[0] = x2; p->v[1] = y2;
p->t[0] = tx2; p->t[1] = ty2;
p++;
p->v[0] = x2; p->v[1] = y1;
p->t[0] = tx2; p->t[1] = ty1;
p++;
}
static void
_cogl_texture_quad_sw (CoglTexture *tex,
CoglFixed x1,
@ -1939,11 +2028,7 @@ _cogl_texture_quad_sw (CoglTexture *tex,
CoglFixed slice_tx2 , slice_ty2;
CoglFixed slice_qx1 , slice_qy1;
CoglFixed slice_qx2 , slice_qy2;
GLfloat tex_coords[8];
GLfloat quad_coords[8];
GLuint gl_handle;
gulong enable_flags = (COGL_ENABLE_VERTEX_ARRAY
| COGL_ENABLE_TEXCOORD_ARRAY);
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
@ -1951,26 +2036,13 @@ _cogl_texture_quad_sw (CoglTexture *tex,
printf("=== Drawing Tex Quad (Software Tiling Mode) ===\n");
#endif
/* Prepare GL state */
if (tex->gl_target == CGL_TEXTURE_RECTANGLE_ARB)
enable_flags |= COGL_ENABLE_TEXTURE_RECT;
else
enable_flags |= COGL_ENABLE_TEXTURE_2D;
if (ctx->color_alpha < 255
|| tex->bitmap.format & COGL_A_BIT)
{
enable_flags |= COGL_ENABLE_BLEND;
}
if (ctx->enable_backface_culling)
enable_flags |= COGL_ENABLE_BACKFACE_CULLING;
cogl_enable (enable_flags);
/* We can't use hardware repeat so we need to set clamp to edge
otherwise it might pull in edge pixels from the other side */
if (ctx->texture_vertices->len > 0
&& ctx->texture_wrap_mode != GL_CLAMP_TO_EDGE)
_cogl_texture_flush_vertices ();
_cogl_texture_set_wrap_mode_parameter (tex, GL_CLAMP_TO_EDGE);
ctx->texture_wrap_mode = GL_CLAMP_TO_EDGE;
/* If the texture coordinates are backwards then swap both the
geometry and texture coordinates so that the texture will be
@ -1995,9 +2067,6 @@ _cogl_texture_quad_sw (CoglTexture *tex,
ty2 = temp;
}
GE( glTexCoordPointer (2, GL_FLOAT, 0, tex_coords) );
GE( glVertexPointer (2, GL_FLOAT, 0, quad_coords) );
/* Scale ratio from texture to quad widths */
tw = COGL_FIXED_FROM_INT (tex->bitmap.width);
th = COGL_FIXED_FROM_INT (tex->bitmap.height);
@ -2095,24 +2164,22 @@ _cogl_texture_quad_sw (CoglTexture *tex,
iter_y.index * iter_x.array->len +
iter_x.index);
GE( glBindTexture (tex->gl_target, gl_handle) );
/* If we're using a different texture from the one already queued
then flush the vertices */
if (ctx->texture_vertices->len > 0
&& gl_handle != ctx->texture_current)
_cogl_texture_flush_vertices ();
ctx->texture_target = tex->gl_target;
ctx->texture_current = gl_handle;
#define CFX_F COGL_FIXED_TO_FLOAT
/* Draw textured quad */
tex_coords[0] = CFX_F(slice_tx1); tex_coords[1] = CFX_F(slice_ty2);
tex_coords[2] = CFX_F(slice_tx2); tex_coords[3] = CFX_F(slice_ty2);
tex_coords[4] = CFX_F(slice_tx1); tex_coords[5] = CFX_F(slice_ty1);
tex_coords[6] = CFX_F(slice_tx2); tex_coords[7] = CFX_F(slice_ty1);
quad_coords[0] = CFX_F(slice_qx1); quad_coords[1] = CFX_F(slice_qy2);
quad_coords[2] = CFX_F(slice_qx2); quad_coords[3] = CFX_F(slice_qy2);
quad_coords[4] = CFX_F(slice_qx1); quad_coords[5] = CFX_F(slice_qy1);
quad_coords[6] = CFX_F(slice_qx2); quad_coords[7] = CFX_F(slice_qy1);
GE (glDrawArrays (GL_TRIANGLE_STRIP, 0, 4) );
#undef CFX_F
_cogl_texture_add_quad_vertices (COGL_FIXED_TO_FLOAT (slice_qx1),
COGL_FIXED_TO_FLOAT (slice_qy1),
COGL_FIXED_TO_FLOAT (slice_qx2),
COGL_FIXED_TO_FLOAT (slice_qy2),
COGL_FIXED_TO_FLOAT (slice_tx1),
COGL_FIXED_TO_FLOAT (slice_ty1),
COGL_FIXED_TO_FLOAT (slice_tx2),
COGL_FIXED_TO_FLOAT (slice_ty2));
}
}
}
@ -2128,13 +2195,10 @@ _cogl_texture_quad_hw (CoglTexture *tex,
CoglFixed tx2,
CoglFixed ty2)
{
GLfloat tex_coords[8];
GLfloat quad_coords[8];
GLuint gl_handle;
CoglTexSliceSpan *x_span;
CoglTexSliceSpan *y_span;
gulong enable_flags = (COGL_ENABLE_VERTEX_ARRAY
| COGL_ENABLE_TEXCOORD_ARRAY);
GLenum wrap_mode;
#if COGL_DEBUG
printf("=== Drawing Tex Quad (Hardware Tiling Mode) ===\n");
@ -2142,24 +2206,6 @@ _cogl_texture_quad_hw (CoglTexture *tex,
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
/* Prepare GL state */
if (tex->gl_target == CGL_TEXTURE_RECTANGLE_ARB)
enable_flags |= COGL_ENABLE_TEXTURE_RECT;
else
enable_flags |= COGL_ENABLE_TEXTURE_2D;
if (ctx->color_alpha < 255
|| tex->bitmap.format & COGL_A_BIT)
{
enable_flags |= COGL_ENABLE_BLEND;
}
if (ctx->enable_backface_culling)
enable_flags |= COGL_ENABLE_BACKFACE_CULLING;
cogl_enable (enable_flags);
/* If the texture coords are all in the range [0,1] then we want to
clamp the coords to the edge otherwise it can pull in edge pixels
from the wrong side when scaled */
@ -2167,16 +2213,24 @@ _cogl_texture_quad_hw (CoglTexture *tex,
&& tx2 >= 0 && tx2 <= COGL_FIXED_1
&& ty1 >= 0 && ty1 <= COGL_FIXED_1
&& ty2 >= 0 && ty2 <= COGL_FIXED_1)
_cogl_texture_set_wrap_mode_parameter (tex, GL_CLAMP_TO_EDGE);
wrap_mode = GL_CLAMP_TO_EDGE;
else
_cogl_texture_set_wrap_mode_parameter (tex, GL_REPEAT);
GE( glTexCoordPointer (2, GL_FLOAT, 0, tex_coords) );
GE( glVertexPointer (2, GL_FLOAT, 0, quad_coords) );
wrap_mode = GL_REPEAT;
/* Pick and bind opengl texture object */
gl_handle = g_array_index (tex->slice_gl_handles, GLuint, 0);
GE( glBindTexture (tex->gl_target, gl_handle) );
/* If we're using a different texture from the one already queued
then flush the vertices */
if (ctx->texture_vertices->len > 0
&& (gl_handle != ctx->texture_current
|| ctx->texture_wrap_mode != wrap_mode))
_cogl_texture_flush_vertices ();
ctx->texture_target = tex->gl_target;
ctx->texture_current = gl_handle;
ctx->texture_wrap_mode = wrap_mode;
_cogl_texture_set_wrap_mode_parameter (tex, wrap_mode);
/* Don't include the waste in the texture coordinates */
x_span = &g_array_index (tex->slice_x_spans, CoglTexSliceSpan, 0);
@ -2197,36 +2251,26 @@ _cogl_texture_quad_hw (CoglTexture *tex,
ty2 *= y_span->size;
}
#define CFX_F(x) COGL_FIXED_TO_FLOAT(x)
/* Draw textured quad */
tex_coords[0] = CFX_F(tx1); tex_coords[1] = CFX_F(ty2);
tex_coords[2] = CFX_F(tx2); tex_coords[3] = CFX_F(ty2);
tex_coords[4] = CFX_F(tx1); tex_coords[5] = CFX_F(ty1);
tex_coords[6] = CFX_F(tx2); tex_coords[7] = CFX_F(ty1);
quad_coords[0] = CFX_F(x1); quad_coords[1] = CFX_F(y2);
quad_coords[2] = CFX_F(x2); quad_coords[3] = CFX_F(y2);
quad_coords[4] = CFX_F(x1); quad_coords[5] = CFX_F(y1);
quad_coords[6] = CFX_F(x2); quad_coords[7] = CFX_F(y1);
GE (glDrawArrays (GL_TRIANGLE_STRIP, 0, 4) );
#undef CFX_F
_cogl_texture_add_quad_vertices (COGL_FIXED_TO_FLOAT (x1),
COGL_FIXED_TO_FLOAT (y1),
COGL_FIXED_TO_FLOAT (x2),
COGL_FIXED_TO_FLOAT (y2),
COGL_FIXED_TO_FLOAT (tx1),
COGL_FIXED_TO_FLOAT (ty1),
COGL_FIXED_TO_FLOAT (tx2),
COGL_FIXED_TO_FLOAT (ty2));
}
void
cogl_texture_rectangle (CoglHandle handle,
CoglFixed x1,
CoglFixed y1,
CoglFixed x2,
CoglFixed y2,
CoglFixed tx1,
CoglFixed ty1,
CoglFixed tx2,
CoglFixed ty2)
cogl_texture_multiple_rectangles (CoglHandle handle,
const CoglFixed *verts,
guint n_rects)
{
CoglTexture *tex;
CoglTexture *tex;
gulong enable_flags = (COGL_ENABLE_VERTEX_ARRAY
| COGL_ENABLE_TEXCOORD_ARRAY);
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
/* Check if valid texture */
if (!cogl_is_texture (handle))
@ -2243,22 +2287,73 @@ cogl_texture_rectangle (CoglHandle handle,
if (tex->slice_gl_handles->len == 0)
return;
if (tx1 == tx2 || ty1 == ty2)
return;
/* If there is only one GL texture and either the texture is NPOT
(no waste) or all of the coordinates are in the range [0,1] then
we can use hardware tiling */
if (tex->slice_gl_handles->len == 1
&& ((cogl_features_available (COGL_FEATURE_TEXTURE_NPOT)
&& tex->gl_target == GL_TEXTURE_2D)
|| (tx1 >= 0 && tx1 <= COGL_FIXED_1
&& tx2 >= 0 && tx2 <= COGL_FIXED_1
&& ty1 >= 0 && ty1 <= COGL_FIXED_1
&& ty2 >= 0 && ty2 <= COGL_FIXED_1)))
_cogl_texture_quad_hw (tex, x1,y1, x2,y2, tx1,ty1, tx2,ty2);
/* Prepare GL state */
if (tex->gl_target == CGL_TEXTURE_RECTANGLE_ARB)
enable_flags |= COGL_ENABLE_TEXTURE_RECT;
else
_cogl_texture_quad_sw (tex, x1,y1, x2,y2, tx1,ty1, tx2,ty2);
enable_flags |= COGL_ENABLE_TEXTURE_2D;
if (ctx->color_alpha < 255
|| tex->bitmap.format & COGL_A_BIT)
enable_flags |= COGL_ENABLE_BLEND;
if (ctx->enable_backface_culling)
enable_flags |= COGL_ENABLE_BACKFACE_CULLING;
cogl_enable (enable_flags);
g_array_set_size (ctx->texture_vertices, 0);
while (n_rects-- > 0)
{
if (verts[4] != verts[6] && verts[5] != verts[7])
{
/* If there is only one GL texture and either the texture is
NPOT (no waste) or all of the coordinates are in the
range [0,1] then we can use hardware tiling */
if (tex->slice_gl_handles->len == 1
&& ((cogl_features_available (COGL_FEATURE_TEXTURE_NPOT)
&& tex->gl_target == GL_TEXTURE_2D)
|| (verts[4] >= 0 && verts[4] <= COGL_FIXED_1
&& verts[6] >= 0 && verts[6] <= COGL_FIXED_1
&& verts[5] >= 0 && verts[5] <= COGL_FIXED_1
&& verts[7] >= 0 && verts[7] <= COGL_FIXED_1)))
_cogl_texture_quad_hw (tex, verts[0],verts[1], verts[2],verts[3],
verts[4],verts[5], verts[6],verts[7]);
else
_cogl_texture_quad_sw (tex, verts[0],verts[1], verts[2],verts[3],
verts[4],verts[5], verts[6],verts[7]);
}
verts += 8;
}
_cogl_texture_flush_vertices ();
}
void
cogl_texture_rectangle (CoglHandle handle,
CoglFixed x1,
CoglFixed y1,
CoglFixed x2,
CoglFixed y2,
CoglFixed tx1,
CoglFixed ty1,
CoglFixed tx2,
CoglFixed ty2)
{
CoglFixed verts[8];
verts[0] = x1;
verts[1] = y1;
verts[2] = x2;
verts[3] = y2;
verts[4] = tx1;
verts[5] = ty1;
verts[6] = tx2;
verts[7] = ty2;
cogl_texture_multiple_rectangles (handle, verts, 1);
}
void
@ -2307,22 +2402,8 @@ cogl_texture_polygon (CoglHandle handle,
/* Make sure there is enough space in the global texture vertex
array. This is used so we can render the polygon with a single
call to OpenGL but still support any number of vertices */
if (ctx->texture_vertices_size < n_vertices)
{
guint nsize = ctx->texture_vertices_size;
if (nsize == 0)
nsize = 1;
do
nsize *= 2;
while (nsize < n_vertices);
ctx->texture_vertices_size = nsize;
ctx->texture_vertices = g_realloc (ctx->texture_vertices,
nsize
* sizeof (CoglTextureGLVertex));
}
g_array_set_size (ctx->texture_vertices, n_vertices);
p = (CoglTextureGLVertex *) ctx->texture_vertices->data;
/* Prepare GL state */
enable_flags = (COGL_ENABLE_VERTEX_ARRAY
@ -2340,14 +2421,12 @@ cogl_texture_polygon (CoglHandle handle,
if (use_color)
{
enable_flags |= COGL_ENABLE_COLOR_ARRAY;
GE( glColorPointer (4, GL_UNSIGNED_BYTE, sizeof (CoglTextureGLVertex),
ctx->texture_vertices[0].c) );
GE( glColorPointer (4, GL_UNSIGNED_BYTE,
sizeof (CoglTextureGLVertex), p->c) );
}
GE( glVertexPointer (3, GL_FLOAT, sizeof (CoglTextureGLVertex),
ctx->texture_vertices[0].v) );
GE( glTexCoordPointer (2, GL_FLOAT, sizeof (CoglTextureGLVertex),
ctx->texture_vertices[0].t) );
GE( glVertexPointer (3, GL_FLOAT, sizeof (CoglTextureGLVertex), p->v ) );
GE( glTexCoordPointer (2, GL_FLOAT, sizeof (CoglTextureGLVertex), p->t ) );
cogl_enable (enable_flags);
@ -2370,9 +2449,11 @@ cogl_texture_polygon (CoglHandle handle,
gl_handle = g_array_index (tex->slice_gl_handles, GLuint, tex_num++);
p = (CoglTextureGLVertex *) ctx->texture_vertices->data;
/* Convert the vertices into an array of GLfloats ready to pass to
OpenGL */
for (i = 0, p = ctx->texture_vertices; i < n_vertices; i++, p++)
for (i = 0; i < n_vertices; i++, p++)
{
CoglFixed tx, ty;

1
gles/Makefile.am
View File

@ -20,6 +20,7 @@ INCLUDES = \
-I$(top_srcdir)/clutter/cogl/$(CLUTTER_COGL) \
-I$(top_builddir)/clutter \
-I$(top_builddir)/clutter/cogl \
-DG_LOG_DOMAIN=\"Cogl-GLES\" \
-DCLUTTER_COMPILATION \
$(CLUTTER_CFLAGS) \
$(CLUTTER_DEBUG_CFLAGS) \

14
gles/cogl-context.c
View File

@ -59,9 +59,11 @@ cogl_create_context ()
_context->last_path = 0;
_context->texture_handles = NULL;
_context->texture_vertices_size = 0;
_context->texture_vertices = NULL;
_context->texture_vertices = g_array_new (FALSE, FALSE,
sizeof (CoglTextureGLVertex));
_context->texture_indices = g_array_new (FALSE, FALSE,
sizeof (GLushort));
_context->fbo_handles = NULL;
_context->program_handles = NULL;
_context->shader_handles = NULL;
@ -104,8 +106,10 @@ cogl_destroy_context ()
#endif
if (_context->texture_vertices)
g_free (_context->texture_vertices);
g_array_free (_context->texture_vertices, TRUE);
if (_context->texture_indices)
g_array_free (_context->texture_indices, TRUE);
if (_context->texture_handles)
g_array_free (_context->texture_handles, TRUE);
if (_context->fbo_handles)

11
gles/cogl-context.h
View File

@ -65,9 +65,14 @@ typedef struct
/* Textures */
GArray *texture_handles;
CoglTextureGLVertex *texture_vertices;
gulong texture_vertices_size;
GArray *texture_vertices;
GArray *texture_indices;
/* The gl texture number that the above vertices apply to. This to
detect when a different slice is encountered so that the vertices
can be flushed */
GLuint texture_current;
GLenum texture_target;
/* Framebuffer objects */
GArray *fbo_handles;
CoglBufferTarget draw_buffer;

358
gles/cogl-texture.c
View File

@ -2047,6 +2047,94 @@ cogl_texture_get_data (CoglHandle handle,
return byte_size;
}
static void
_cogl_texture_flush_vertices (void)
{
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
if (ctx->texture_vertices->len > 0)
{
int needed_indices;
CoglTextureGLVertex *p
= (CoglTextureGLVertex *) ctx->texture_vertices->data;
/* The indices are always the same sequence regardless of the
vertices so we only need to change it if there are more
vertices than ever before */
needed_indices = ctx->texture_vertices->len / 4 * 6;
if (needed_indices > ctx->texture_indices->len)
{
int old_len = ctx->texture_indices->len;
int vert_num = old_len / 6 * 4;
int i;
GLushort *q;
/* Add two triangles for each quad to the list of
indices. That makes six new indices but two of the
vertices in the triangles are shared. */
g_array_set_size (ctx->texture_indices, needed_indices);
q = &g_array_index (ctx->texture_indices, GLushort, old_len);
for (i = old_len;
i < ctx->texture_indices->len;
i += 6, vert_num += 4)
{
*(q++) = vert_num + 0;
*(q++) = vert_num + 1;
*(q++) = vert_num + 3;
*(q++) = vert_num + 1;
*(q++) = vert_num + 2;
*(q++) = vert_num + 3;
}
}
GE( glVertexPointer (2, GL_FLOAT,
sizeof (CoglTextureGLVertex), p->v ) );
GE( glTexCoordPointer (2, GL_FLOAT,
sizeof (CoglTextureGLVertex), p->t ) );
GE( glBindTexture (ctx->texture_target, ctx->texture_current) );
GE( glDrawElements (GL_TRIANGLES,
needed_indices,
GL_UNSIGNED_SHORT,
ctx->texture_indices->data) );
g_array_set_size (ctx->texture_vertices, 0);
}
}
static void
_cogl_texture_add_quad_vertices (GLfloat x1, GLfloat y1,
GLfloat x2, GLfloat y2,
GLfloat tx1, GLfloat ty1,
GLfloat tx2, GLfloat ty2)
{
CoglTextureGLVertex *p;
GLushort first_vert;
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
/* Add the four vertices of the quad to the list of queued
vertices */
first_vert = ctx->texture_vertices->len;
g_array_set_size (ctx->texture_vertices, first_vert + 4);
p = &g_array_index (ctx->texture_vertices, CoglTextureGLVertex, first_vert);
p->v[0] = x1; p->v[1] = y1;
p->t[0] = tx1; p->t[1] = ty1;
p++;
p->v[0] = x1; p->v[1] = y2;
p->t[0] = tx1; p->t[1] = ty2;
p++;
p->v[0] = x2; p->v[1] = y2;
p->t[0] = tx2; p->t[1] = ty2;
p++;
p->v[0] = x2; p->v[1] = y1;
p->t[0] = tx2; p->t[1] = ty1;
p++;
}
static void
_cogl_texture_quad_sw (CoglTexture *tex,
CoglFixed x1,
@ -2067,31 +2155,13 @@ _cogl_texture_quad_sw (CoglTexture *tex,
CoglFixed slice_tx2 , slice_ty2;
CoglFixed slice_qx1 , slice_qy1;
CoglFixed slice_qx2 , slice_qy2;
GLfloat tex_coords[8];
GLfloat quad_coords[8];
GLuint gl_handle;
gulong enable_flags = (COGL_ENABLE_TEXTURE_2D
| COGL_ENABLE_VERTEX_ARRAY
| COGL_ENABLE_TEXCOORD_ARRAY);
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
#if COGL_DEBUG
printf("=== Drawing Tex Quad (Software Tiling Mode) ===\n");
#endif
/* Prepare GL state */
if (ctx->color_alpha < 255
|| tex->bitmap.format & COGL_A_BIT)
{
enable_flags |= COGL_ENABLE_BLEND;
}
if (ctx->enable_backface_culling)
enable_flags |= COGL_ENABLE_BACKFACE_CULLING;
cogl_enable (enable_flags);
/* If the texture coordinates are backwards then swap both the
geometry and texture coordinates so that the texture will be
@ -2115,10 +2185,7 @@ _cogl_texture_quad_sw (CoglTexture *tex,
ty1 = ty2;
ty2 = temp;
}
GE( glTexCoordPointer (2, GL_FLOAT, 0, tex_coords) );
GE( glVertexPointer (2, GL_FLOAT, 0, quad_coords) );
/* Scale ratio from texture to quad widths */
tw = COGL_FIXED_FROM_INT (tex->bitmap.width);
th = COGL_FIXED_FROM_INT (tex->bitmap.height);
@ -2158,17 +2225,16 @@ _cogl_texture_quad_sw (CoglTexture *tex,
slice_qy2 = first_qy +
COGL_FIXED_MUL (iter_y.intersect_end - first_ty, tqy);
/* Localize slice texture coordinates */
slice_ty1 = iter_y.intersect_start - iter_y.pos;
slice_ty2 = iter_y.intersect_end - iter_y.pos;
/* Normalize texture coordinates to current slice
(rectangle texture targets take denormalized) */
slice_ty1 /= iter_y.span->size;
slice_ty2 /= iter_y.span->size;
/* Iterate until whole quad width covered */
for (_cogl_span_iter_begin (&iter_x, tex->slice_x_spans,
first_tx, tx1, tx2) ;
@ -2188,12 +2254,12 @@ _cogl_texture_quad_sw (CoglTexture *tex,
/* Localize slice texture coordinates */
slice_tx1 = iter_x.intersect_start - iter_x.pos;
slice_tx2 = iter_x.intersect_end - iter_x.pos;
/* Normalize texture coordinates to current slice
(rectangle texture targets take denormalized) */
slice_tx1 /= iter_x.span->size;
slice_tx2 /= iter_x.span->size;
#if COGL_DEBUG
printf("~~~~~ slice (%d,%d)\n", iter_x.index, iter_y.index);
printf("qx1: %f\n", COGL_FIXED_TO_FLOAT (slice_qx1));
@ -2210,26 +2276,23 @@ _cogl_texture_quad_sw (CoglTexture *tex,
gl_handle = g_array_index (tex->slice_gl_handles, GLuint,
iter_y.index * iter_x.array->len +
iter_x.index);
GE( cogl_gles2_wrapper_bind_texture (tex->gl_target, gl_handle,
tex->gl_intformat) );
#define CFX_F COGL_FIXED_TO_FLOAT
/* Draw textured quad */
tex_coords[0] = CFX_F(slice_tx1); tex_coords[1] = CFX_F(slice_ty2);
tex_coords[2] = CFX_F(slice_tx2); tex_coords[3] = CFX_F(slice_ty2);
tex_coords[4] = CFX_F(slice_tx1); tex_coords[5] = CFX_F(slice_ty1);
tex_coords[6] = CFX_F(slice_tx2); tex_coords[7] = CFX_F(slice_ty1);
/* If we're using a different texture from the one already queued
then flush the vertices */
if (ctx->texture_vertices->len > 0
&& gl_handle != ctx->texture_current)
_cogl_texture_flush_vertices ();
ctx->texture_target = tex->gl_target;
ctx->texture_current = gl_handle;
quad_coords[0] = CFX_F(slice_qx1); quad_coords[1] = CFX_F(slice_qy2);
quad_coords[2] = CFX_F(slice_qx2); quad_coords[3] = CFX_F(slice_qy2);
quad_coords[4] = CFX_F(slice_qx1); quad_coords[5] = CFX_F(slice_qy1);
quad_coords[6] = CFX_F(slice_qx2); quad_coords[7] = CFX_F(slice_qy1);
GE (glDrawArrays (GL_TRIANGLE_STRIP, 0, 4) );
#undef CFX_F
_cogl_texture_add_quad_vertices (COGL_FIXED_TO_FLOAT (slice_qx1),
COGL_FIXED_TO_FLOAT (slice_qy1),
COGL_FIXED_TO_FLOAT (slice_qx2),
COGL_FIXED_TO_FLOAT (slice_qy2),
COGL_FIXED_TO_FLOAT (slice_tx1),
COGL_FIXED_TO_FLOAT (slice_ty1),
COGL_FIXED_TO_FLOAT (slice_tx2),
COGL_FIXED_TO_FLOAT (slice_ty2));
}
}
}
@ -2245,41 +2308,27 @@ _cogl_texture_quad_hw (CoglTexture *tex,
CoglFixed tx2,
CoglFixed ty2)
{
GLfloat tex_coords[8];
GLfloat quad_coords[8];
GLuint gl_handle;
CoglTexSliceSpan *x_span;
CoglTexSliceSpan *y_span;
gulong enable_flags = (COGL_ENABLE_TEXTURE_2D
| COGL_ENABLE_VERTEX_ARRAY
| COGL_ENABLE_TEXCOORD_ARRAY);
#if COGL_DEBUG
printf("=== Drawing Tex Quad (Hardware Tiling Mode) ===\n");
#endif
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
/* Prepare GL state */
if (ctx->color_alpha < 255
|| tex->bitmap.format & COGL_A_BIT)
{
enable_flags |= COGL_ENABLE_BLEND;
}
if (ctx->enable_backface_culling)
enable_flags |= COGL_ENABLE_BACKFACE_CULLING;
cogl_enable (enable_flags);
GE( glTexCoordPointer (2, GL_FLOAT, 0, tex_coords) );
GE( glVertexPointer (2, GL_FLOAT, 0, quad_coords) );
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
/* Pick and bind opengl texture object */
gl_handle = g_array_index (tex->slice_gl_handles, GLuint, 0);
GE( cogl_gles2_wrapper_bind_texture (tex->gl_target, gl_handle,
tex->gl_intformat) );
/* If we're using a different texture from the one already queued
then flush the vertices */
if (ctx->texture_vertices->len > 0
&& gl_handle != ctx->texture_current)
_cogl_texture_flush_vertices ();
ctx->texture_target = tex->gl_target;
ctx->texture_current = gl_handle;
/* Don't include the waste in the texture coordinates */
x_span = &g_array_index (tex->slice_x_spans, CoglTexSliceSpan, 0);
y_span = &g_array_index (tex->slice_y_spans, CoglTexSliceSpan, 0);
@ -2290,22 +2339,80 @@ _cogl_texture_quad_hw (CoglTexture *tex,
ty1 = ty1 * (y_span->size - y_span->waste) / y_span->size;
ty2 = ty2 * (y_span->size - y_span->waste) / y_span->size;
#define CFX_F(x) COGL_FIXED_TO_FLOAT(x)
_cogl_texture_add_quad_vertices (COGL_FIXED_TO_FLOAT (x1),
COGL_FIXED_TO_FLOAT (y1),
COGL_FIXED_TO_FLOAT (x2),
COGL_FIXED_TO_FLOAT (y2),
COGL_FIXED_TO_FLOAT (tx1),
COGL_FIXED_TO_FLOAT (ty1),
COGL_FIXED_TO_FLOAT (tx2),
COGL_FIXED_TO_FLOAT (ty2));
}
void
cogl_texture_multiple_rectangles (CoglHandle handle,
const CoglFixed *verts,
guint n_rects)
{
CoglTexture *tex;
gulong enable_flags = (COGL_ENABLE_VERTEX_ARRAY
| COGL_ENABLE_TEXCOORD_ARRAY
| COGL_ENABLE_TEXTURE_2D);
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
/* Check if valid texture */
if (!cogl_is_texture (handle))
return;
/* Draw textured quad */
tex_coords[0] = CFX_F(tx1); tex_coords[1] = CFX_F(ty2);
tex_coords[2] = CFX_F(tx2); tex_coords[3] = CFX_F(ty2);
tex_coords[4] = CFX_F(tx1); tex_coords[5] = CFX_F(ty1);
tex_coords[6] = CFX_F(tx2); tex_coords[7] = CFX_F(ty1);
cogl_clip_ensure ();
quad_coords[0] = CFX_F(x1); quad_coords[1] = CFX_F(y2);
quad_coords[2] = CFX_F(x2); quad_coords[3] = CFX_F(y2);
quad_coords[4] = CFX_F(x1); quad_coords[5] = CFX_F(y1);
quad_coords[6] = CFX_F(x2); quad_coords[7] = CFX_F(y1);
tex = _cogl_texture_pointer_from_handle (handle);
/* Make sure we got stuff to draw */
if (tex->slice_gl_handles == NULL)
return;
if (tex->slice_gl_handles->len == 0)
return;
GE (glDrawArrays (GL_TRIANGLE_STRIP, 0, 4) );
/* Prepare GL state */
if (ctx->color_alpha < 255
|| tex->bitmap.format & COGL_A_BIT)
enable_flags |= COGL_ENABLE_BLEND;
#undef CFX_F
if (ctx->enable_backface_culling)
enable_flags |= COGL_ENABLE_BACKFACE_CULLING;
cogl_enable (enable_flags);
g_array_set_size (ctx->texture_vertices, 0);
while (n_rects-- > 0)
{
if (verts[4] != verts[6] && verts[5] != verts[7])
{
/* If there is only one GL texture and either the texture is
NPOT (no waste) or all of the coordinates are in the
range [0,1] then we can use hardware tiling */
if (tex->slice_gl_handles->len == 1
&& ((cogl_features_available (COGL_FEATURE_TEXTURE_NPOT)
&& tex->gl_target == GL_TEXTURE_2D)
|| (verts[4] >= 0 && verts[4] <= COGL_FIXED_1
&& verts[6] >= 0 && verts[6] <= COGL_FIXED_1
&& verts[5] >= 0 && verts[5] <= COGL_FIXED_1
&& verts[7] >= 0 && verts[7] <= COGL_FIXED_1)))
_cogl_texture_quad_hw (tex, verts[0],verts[1], verts[2],verts[3],
verts[4],verts[5], verts[6],verts[7]);
else
_cogl_texture_quad_sw (tex, verts[0],verts[1], verts[2],verts[3],
verts[4],verts[5], verts[6],verts[7]);
}
verts += 8;
}
_cogl_texture_flush_vertices ();
}
void
@ -2319,47 +2426,18 @@ cogl_texture_rectangle (CoglHandle handle,
CoglFixed tx2,
CoglFixed ty2)
{
CoglTexture *tex;
/* Check if valid texture */
if (!cogl_is_texture (handle))
return;
CoglFixed verts[8];
cogl_clip_ensure ();
tex = _cogl_texture_pointer_from_handle (handle);
/* Make sure we got stuff to draw */
if (tex->slice_gl_handles == NULL)
return;
if (tex->slice_gl_handles->len == 0)
return;
if (tx1 == tx2 || ty1 == ty2)
return;
/* Pick tiling mode according to hw support */
if (cogl_features_available (COGL_FEATURE_TEXTURE_NPOT)
&& tex->slice_gl_handles->len == 1)
{
_cogl_texture_quad_hw (tex, x1,y1, x2,y2, tx1,ty1, tx2,ty2);
}
else
{
if (tex->slice_gl_handles->len == 1
&& tx1 >= -COGL_FIXED_1
&& tx2 <= COGL_FIXED_1
&& ty1 >= -COGL_FIXED_1
&& ty2 <= COGL_FIXED_1)
{
_cogl_texture_quad_hw (tex, x1,y1, x2,y2, tx1,ty1, tx2,ty2);
}
else
{
_cogl_texture_quad_sw (tex, x1,y1, x2,y2, tx1,ty1, tx2,ty2);
}
}
verts[0] = x1;
verts[1] = y1;
verts[2] = x2;
verts[3] = y2;
verts[4] = tx1;
verts[5] = ty1;
verts[6] = tx2;
verts[7] = ty2;
cogl_texture_multiple_rectangles (handle, verts, 1);
}
void
@ -2405,23 +2483,9 @@ cogl_texture_polygon (CoglHandle handle,
/* Make sure there is enough space in the global texture vertex
array. This is used so we can render the polygon with a single
call to OpenGL but still support any number of vertices */
if (ctx->texture_vertices_size < n_vertices)
{
guint nsize = ctx->texture_vertices_size;
if (nsize == 0)
nsize = 1;
do
nsize *= 2;
while (nsize < n_vertices);
ctx->texture_vertices_size = nsize;
g_array_set_size (ctx->texture_vertices, n_vertices);
p = (CoglTextureGLVertex *) ctx->texture_vertices->data;
ctx->texture_vertices = g_realloc (ctx->texture_vertices,
nsize
* sizeof (CoglTextureGLVertex));
}
/* Prepare GL state */
enable_flags = (COGL_ENABLE_TEXTURE_2D
| COGL_ENABLE_VERTEX_ARRAY
@ -2447,14 +2511,12 @@ cogl_texture_polygon (CoglHandle handle,
if (use_color)
{
enable_flags |= COGL_ENABLE_COLOR_ARRAY;
GE( glColorPointer (4, GL_UNSIGNED_BYTE, sizeof (CoglTextureGLVertex),
ctx->texture_vertices[0].c) );
}
GE( glColorPointer (4, GL_UNSIGNED_BYTE,
sizeof (CoglTextureGLVertex), p->c) );
}
GE( glVertexPointer (3, GL_FLOAT, sizeof (CoglTextureGLVertex),
ctx->texture_vertices[0].v) );
GE( glTexCoordPointer (2, GL_FLOAT, sizeof (CoglTextureGLVertex),
ctx->texture_vertices[0].t) );
GE( glVertexPointer (3, GL_FLOAT, sizeof (CoglTextureGLVertex), p->v ) );
GE( glTexCoordPointer (2, GL_FLOAT, sizeof (CoglTextureGLVertex), p->t ) );
cogl_enable (enable_flags);
@ -2464,7 +2526,7 @@ cogl_texture_polygon (CoglHandle handle,
/* Convert the vertices into an array of GLfloats ready to pass to
OpenGL */
for (i = 0, p = ctx->texture_vertices; i < n_vertices; i++, p++)
for (i = 0; i < n_vertices; i++, p++)
{
#define CFX_F COGL_FIXED_TO_FLOAT