[Mesa-dev] [RFC PATCH 04/26] mesa: add texobj support for ARB_texture_multisample
Chris Forbes
chrisf at ijw.co.nz
Sat Dec 29 04:35:17 PST 2012
V2: Allow multisample texture targets in glInvalidateTexSubImage too.
This was already partly there, but I missed it the first time around
since the interaction is defined in a newer extension.
Signed-off-by: Chris Forbes <chrisf at ijw.co.nz>
---
src/mesa/main/fbobject.c | 5 +++++
src/mesa/main/mtypes.h | 4 ++++
src/mesa/main/shared.c | 2 ++
src/mesa/main/teximage.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++--
src/mesa/main/texobj.c | 28 +++++++++++++++++++++---
src/mesa/main/texparam.c | 3 +++
src/mesa/main/texstate.c | 2 ++
7 files changed, 94 insertions(+), 5 deletions(-)
diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index ce77b9f..c541695 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -2217,6 +2217,11 @@ _mesa_FramebufferTexture2D(GLenum target, GLenum attachment,
error = (_mesa_is_gles(ctx) && ctx->Version < 30)
|| !ctx->Extensions.EXT_texture_array;
break;
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ error = _mesa_is_gles(ctx)
+ || !ctx->Extensions.ARB_texture_multisample;
+ break;
default:
error = GL_TRUE;
}
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 7c513a1..db87ead 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1148,6 +1148,8 @@ struct gl_stencil_attrib
*/
typedef enum
{
+ TEXTURE_2D_MULTISAMPLE_INDEX,
+ TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX,
TEXTURE_CUBE_ARRAY_INDEX,
TEXTURE_BUFFER_INDEX,
TEXTURE_2D_ARRAY_INDEX,
@@ -1167,6 +1169,8 @@ typedef enum
* Used for Texture.Unit[]._ReallyEnabled flags.
*/
/*@{*/
+#define TEXTURE_2D_MULTISAMPLE_BIT (1 << TEXTURE_2D_MULTISAMPLE_INDEX)
+#define TEXTURE_2D_MULTISAMPLE_ARRAY_BIT (1 << TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX)
#define TEXTURE_CUBE_ARRAY_BIT (1 << TEXTURE_CUBE_ARRAY_INDEX)
#define TEXTURE_BUFFER_BIT (1 << TEXTURE_BUFFER_INDEX)
#define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
diff --git a/src/mesa/main/shared.c b/src/mesa/main/shared.c
index a98a45c..4081259 100644
--- a/src/mesa/main/shared.c
+++ b/src/mesa/main/shared.c
@@ -92,6 +92,8 @@ _mesa_alloc_shared_state(struct gl_context *ctx)
for (i = 0; i < NUM_TEXTURE_TARGETS; i++) {
/* NOTE: the order of these enums matches the TEXTURE_x_INDEX values */
static const GLenum targets[] = {
+ GL_TEXTURE_2D_MULTISAMPLE,
+ GL_TEXTURE_2D_MULTISAMPLE_ARRAY,
GL_TEXTURE_CUBE_MAP_ARRAY,
GL_TEXTURE_BUFFER,
GL_TEXTURE_2D_ARRAY_EXT,
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index 078ac71..b24efda 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -670,7 +670,7 @@ _mesa_is_proxy_texture(GLenum target)
* NUM_TEXTURE_TARGETS should match number of terms below, except there's no
* proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
*/
- assert(NUM_TEXTURE_TARGETS == 8 + 2);
+ assert(NUM_TEXTURE_TARGETS == 10 + 2);
return (target == GL_PROXY_TEXTURE_1D ||
target == GL_PROXY_TEXTURE_2D ||
@@ -679,7 +679,9 @@ _mesa_is_proxy_texture(GLenum target)
target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
- target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY);
+ target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY ||
+ target == GL_PROXY_TEXTURE_2D_MULTISAMPLE ||
+ target == GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY);
}
@@ -720,6 +722,12 @@ _mesa_get_proxy_target(GLenum target)
case GL_TEXTURE_CUBE_MAP_ARRAY:
case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY;
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
+ return GL_PROXY_TEXTURE_2D_MULTISAMPLE;
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ return GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY;
default:
_mesa_problem(NULL, "unexpected target in _mesa_get_proxy_target()");
return 0;
@@ -797,6 +805,18 @@ _mesa_select_tex_object(struct gl_context *ctx,
case GL_TEXTURE_EXTERNAL_OES:
return ctx->Extensions.OES_EGL_image_external
? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL;
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ return ctx->Extensions.ARB_texture_multisample
+ ? texUnit->CurrentTex[TEXTURE_2D_MULTISAMPLE_INDEX] : NULL;
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
+ return ctx->Extensions.ARB_texture_multisample
+ ? ctx->Texture.ProxyTex[TEXTURE_2D_MULTISAMPLE_INDEX] : NULL;
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ return ctx->Extensions.ARB_texture_multisample
+ ? texUnit->CurrentTex[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX] : NULL;
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ return ctx->Extensions.ARB_texture_multisample
+ ? ctx->Texture.ProxyTex[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX] : NULL;
default:
_mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
return NULL;
@@ -927,6 +947,16 @@ get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
return NULL;
texIndex = TEXTURE_CUBE_ARRAY_INDEX;
break;
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
+ if (level > 0)
+ return 0;
+ texIndex = TEXTURE_2D_MULTISAMPLE_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ if (level > 0)
+ return 0;
+ texIndex = TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX;
+ break;
default:
return NULL;
}
@@ -996,6 +1026,13 @@ _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
case GL_TEXTURE_BUFFER:
return ctx->API == API_OPENGL_CORE &&
ctx->Extensions.ARB_texture_buffer_object ? 1 : 0;
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ return _mesa_is_desktop_gl(ctx)
+ && ctx->Extensions.ARB_texture_multisample
+ ? 1 : 0;
case GL_TEXTURE_EXTERNAL_OES:
/* fall-through */
default:
@@ -1029,6 +1066,8 @@ _mesa_get_texture_dimensions(GLenum target)
case GL_TEXTURE_1D_ARRAY:
case GL_PROXY_TEXTURE_1D_ARRAY:
case GL_TEXTURE_EXTERNAL_OES:
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
return 2;
case GL_TEXTURE_3D:
case GL_PROXY_TEXTURE_3D:
@@ -1036,6 +1075,8 @@ _mesa_get_texture_dimensions(GLenum target)
case GL_PROXY_TEXTURE_2D_ARRAY:
case GL_TEXTURE_CUBE_MAP_ARRAY:
case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
return 3;
case GL_TEXTURE_BUFFER:
/* fall-through */
@@ -1077,6 +1118,8 @@ _mesa_get_tex_max_num_levels(GLenum target, GLsizei width, GLsizei height,
break;
case GL_TEXTURE_RECTANGLE:
case GL_TEXTURE_EXTERNAL_OES:
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
return 1;
default:
assert(0);
@@ -1243,6 +1286,8 @@ _mesa_init_teximage_fields(struct gl_context *ctx,
case GL_PROXY_TEXTURE_2D:
case GL_PROXY_TEXTURE_RECTANGLE:
case GL_PROXY_TEXTURE_CUBE_MAP:
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
img->HeightLog2 = _mesa_logbase2(img->Height2);
if (depth == 0)
@@ -1255,6 +1300,8 @@ _mesa_init_teximage_fields(struct gl_context *ctx,
case GL_PROXY_TEXTURE_2D_ARRAY:
case GL_TEXTURE_CUBE_MAP_ARRAY:
case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
img->HeightLog2 = _mesa_logbase2(img->Height2);
img->Depth2 = depth; /* no border */
@@ -1326,6 +1373,8 @@ _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
case GL_TEXTURE_2D:
case GL_PROXY_TEXTURE_2D:
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
maxSize >>= level;
if (width < 2 * border || width > 2 * border + maxSize)
@@ -1408,6 +1457,8 @@ _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
case GL_TEXTURE_2D_ARRAY_EXT:
case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
maxSize >>= level;
if (width < 2 * border || width > 2 * border + maxSize)
diff --git a/src/mesa/main/texobj.c b/src/mesa/main/texobj.c
index cb7ac19..4173a7f 100644
--- a/src/mesa/main/texobj.c
+++ b/src/mesa/main/texobj.c
@@ -109,7 +109,9 @@ _mesa_initialize_texture_object( struct gl_texture_object *obj,
target == GL_TEXTURE_2D_ARRAY_EXT ||
target == GL_TEXTURE_EXTERNAL_OES ||
target == GL_TEXTURE_CUBE_MAP_ARRAY ||
- target == GL_TEXTURE_BUFFER);
+ target == GL_TEXTURE_BUFFER ||
+ target == GL_TEXTURE_2D_MULTISAMPLE ||
+ target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY);
memset(obj, 0, sizeof(*obj));
/* init the non-zero fields */
@@ -318,6 +320,8 @@ valid_texture_object(const struct gl_texture_object *tex)
case GL_TEXTURE_BUFFER:
case GL_TEXTURE_EXTERNAL_OES:
case GL_TEXTURE_CUBE_MAP_ARRAY:
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
return GL_TRUE;
case 0x99:
_mesa_problem(NULL, "invalid reference to a deleted texture object");
@@ -517,6 +521,8 @@ _mesa_test_texobj_completeness( const struct gl_context *ctx,
case GL_TEXTURE_RECTANGLE_NV:
case GL_TEXTURE_BUFFER:
case GL_TEXTURE_EXTERNAL_OES:
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
maxLevels = 1; /* no mipmapping */
break;
default:
@@ -585,7 +591,8 @@ _mesa_test_texobj_completeness( const struct gl_context *ctx,
height = baseImage->Height2;
depth = baseImage->Depth2;
- /* Note: this loop will be a no-op for RECT, BUFFER, EXTERNAL textures */
+ /* Note: this loop will be a no-op for RECT, BUFFER, EXTERNAL,
+ * MULTISAMPLE and MULTISAMPLE_ARRAY textures */
for (i = baseLevel + 1; i < maxLevels; i++) {
/* Compute the expected size of image at level[i] */
if (width > 1) {
@@ -763,7 +770,7 @@ _mesa_get_fallback_texture(struct gl_context *ctx, gl_texture_index tex)
dims = 0;
target = GL_TEXTURE_BUFFER;
break;
- case TEXTURE_CUBE_ARRAY_INDEX:
+ case TEXTURE_CUBE_ARRAY_INDEX:
dims = 3;
target = GL_TEXTURE_CUBE_MAP_ARRAY;
break;
@@ -771,6 +778,14 @@ _mesa_get_fallback_texture(struct gl_context *ctx, gl_texture_index tex)
dims = 2;
target = GL_TEXTURE_EXTERNAL_OES;
break;
+ case TEXTURE_2D_MULTISAMPLE_INDEX:
+ dims = 2;
+ target = GL_TEXTURE_2D_MULTISAMPLE;
+ break;
+ case TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX:
+ dims = 3;
+ target = GL_TEXTURE_2D_MULTISAMPLE_ARRAY;
+ break;
default:
/* no-op */
return NULL;
@@ -1156,6 +1171,12 @@ target_enum_to_index(struct gl_context *ctx, GLenum target)
? TEXTURE_EXTERNAL_INDEX : -1;
case GL_TEXTURE_CUBE_MAP_ARRAY:
return TEXTURE_CUBE_ARRAY_INDEX;
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
+ ? TEXTURE_2D_MULTISAMPLE_INDEX: -1;
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_multisample
+ ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX: -1;
default:
return -1;
}
@@ -1496,6 +1517,7 @@ _mesa_InvalidateTexSubImage(GLuint texture, GLint level, GLint xoffset,
break;
case GL_TEXTURE_2D_ARRAY:
case GL_TEXTURE_CUBE_MAP_ARRAY:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
xBorder = image->Border;
yBorder = image->Border;
zBorder = 0;
diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index ca5a21f..c141992 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -977,6 +977,9 @@ legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target)
* "target may also be TEXTURE_BUFFER, indicating the texture buffer."
*/
return ctx->API == API_OPENGL_CORE && ctx->Version >= 31;
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ return ctx->Extensions.ARB_texture_multisample;
default:
return GL_FALSE;
}
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c
index 8e9bbf6..7c76490 100644
--- a/src/mesa/main/texstate.c
+++ b/src/mesa/main/texstate.c
@@ -706,6 +706,8 @@ alloc_proxy_textures( struct gl_context *ctx )
* values!
*/
static const GLenum targets[] = {
+ GL_TEXTURE_2D_MULTISAMPLE,
+ GL_TEXTURE_2D_MULTISAMPLE_ARRAY,
GL_TEXTURE_CUBE_MAP_ARRAY,
GL_TEXTURE_BUFFER,
GL_TEXTURE_2D_ARRAY_EXT,
--
1.8.0.3
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