#include "teximage.h"
#include "enums.h"
-/*
- * Define endian-invariant aliases for some mesa formats that are
- * defined in terms of their channel layout from LSB to MSB in a
- * 32-bit word. The actual byte offsets matter here because the user
- * is allowed to bit-cast one format into another and get predictable
- * results.
- */
-#ifdef MESA_BIG_ENDIAN
-# define MESA_FORMAT_RGBA_8 MESA_FORMAT_A8B8G8R8_UNORM
-# define MESA_FORMAT_RG_16 MESA_FORMAT_G16R16_UNORM
-# define MESA_FORMAT_RG_8 MESA_FORMAT_G8R8_UNORM
-# define MESA_FORMAT_SIGNED_RGBA_8 MESA_FORMAT_A8B8G8R8_SNORM
-# define MESA_FORMAT_SIGNED_RG_16 MESA_FORMAT_G16R16_SNORM
-# define MESA_FORMAT_SIGNED_RG_8 MESA_FORMAT_G8R8_SNORM
-#else
-# define MESA_FORMAT_RGBA_8 MESA_FORMAT_R8G8B8A8_UNORM
-# define MESA_FORMAT_RG_16 MESA_FORMAT_R16G16_UNORM
-# define MESA_FORMAT_RG_8 MESA_FORMAT_R8G8_UNORM
-# define MESA_FORMAT_SIGNED_RGBA_8 MESA_FORMAT_R8G8B8A8_SNORM
-# define MESA_FORMAT_SIGNED_RG_16 MESA_FORMAT_R16G16_SNORM
-# define MESA_FORMAT_SIGNED_RG_8 MESA_FORMAT_R8G8_SNORM
-#endif
-
mesa_format
_mesa_get_shader_image_format(GLenum format)
{
return MESA_FORMAT_R10G10B10A2_UNORM;
case GL_RGBA8:
- return MESA_FORMAT_RGBA_8;
+ return MESA_FORMAT_RGBA_UNORM8;
case GL_RG16:
- return MESA_FORMAT_RG_16;
+ return MESA_FORMAT_RG_UNORM16;
case GL_RG8:
- return MESA_FORMAT_RG_8;
+ return MESA_FORMAT_RG_UNORM8;
case GL_R16:
return MESA_FORMAT_R_UNORM16;
return MESA_FORMAT_RGBA_SNORM16;
case GL_RGBA8_SNORM:
- return MESA_FORMAT_SIGNED_RGBA_8;
+ return MESA_FORMAT_RGBA_SNORM8;
case GL_RG16_SNORM:
- return MESA_FORMAT_SIGNED_RG_16;
+ return MESA_FORMAT_RG_SNORM16;
case GL_RG8_SNORM:
- return MESA_FORMAT_SIGNED_RG_8;
+ return MESA_FORMAT_RG_SNORM8;
case GL_R16_SNORM:
return MESA_FORMAT_R_SNORM16;
case MESA_FORMAT_R10G10B10A2_UNORM:
return IMAGE_FORMAT_CLASS_2_10_10_10;
- case MESA_FORMAT_RGBA_8:
+ case MESA_FORMAT_RGBA_UNORM8:
return IMAGE_FORMAT_CLASS_4X8;
- case MESA_FORMAT_RG_16:
+ case MESA_FORMAT_RG_UNORM16:
return IMAGE_FORMAT_CLASS_2X16;
- case MESA_FORMAT_RG_8:
+ case MESA_FORMAT_RG_UNORM8:
return IMAGE_FORMAT_CLASS_2X8;
case MESA_FORMAT_R_UNORM16:
case MESA_FORMAT_RGBA_SNORM16:
return IMAGE_FORMAT_CLASS_4X16;
- case MESA_FORMAT_SIGNED_RGBA_8:
+ case MESA_FORMAT_RGBA_SNORM8:
return IMAGE_FORMAT_CLASS_4X8;
- case MESA_FORMAT_SIGNED_RG_16:
+ case MESA_FORMAT_RG_SNORM16:
return IMAGE_FORMAT_CLASS_2X16;
- case MESA_FORMAT_SIGNED_RG_8:
+ case MESA_FORMAT_RG_SNORM8:
return IMAGE_FORMAT_CLASS_2X8;
case MESA_FORMAT_R_SNORM16:
* ARB_shader_image_load_store extension, c.f. table 3.21 of the OpenGL 4.2
* specification.
*
- * These can be supported by GLES 3.1 with GL_NV_image_formats &
- * GL_EXT_texture_norm16 extensions but we don't have support for the
- * latter in Mesa yet.
+ * Following formats are supported by GLES 3.1 with GL_NV_image_formats &
+ * GL_EXT_texture_norm16 extensions.
*/
case GL_RGBA16:
case GL_RGBA16_SNORM:
case GL_RG16_SNORM:
case GL_R16:
case GL_R16_SNORM:
- return _mesa_is_desktop_gl(ctx);
+ return _mesa_is_desktop_gl(ctx) || _mesa_has_EXT_texture_norm16(ctx);
default:
return false;
{
unsigned i;
+ ASSERT_BITFIELD_SIZE(struct gl_image_unit, Format, MESA_FORMAT_COUNT);
+
for (i = 0; i < ARRAY_SIZE(ctx->ImageUnits); ++i)
ctx->ImageUnits[i] = _mesa_default_image_unit(ctx);
}
+
+void
+_mesa_free_image_textures(struct gl_context *ctx)
+{
+ unsigned i;
+
+ for (i = 0; i < ARRAY_SIZE(ctx->ImageUnits); ++i)
+ _mesa_reference_texobj(&ctx->ImageUnits[i].TexObj, NULL);
+}
+
GLboolean
_mesa_is_image_unit_valid(struct gl_context *ctx, struct gl_image_unit *u)
{
static GLboolean
validate_bind_image_texture(struct gl_context *ctx, GLuint unit,
GLuint texture, GLint level, GLint layer,
- GLenum access, GLenum format)
+ GLenum access, GLenum format, bool check_level_layer)
{
assert(ctx->Const.MaxImageUnits <= MAX_IMAGE_UNITS);
return GL_FALSE;
}
- if (level < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(level)");
- return GL_FALSE;
- }
+ if (check_level_layer) {
+ /* EXT_shader_image_load_store doesn't throw an error if level or
+ * layer is negative.
+ */
+ if (level < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(level)");
+ return GL_FALSE;
+ }
- if (layer < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(layer)");
- return GL_FALSE;
+ if (layer < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(layer)");
+ return GL_FALSE;
+ }
}
if (access != GL_READ_ONLY &&
return GL_TRUE;
}
+static void
+set_image_binding(struct gl_image_unit *u, struct gl_texture_object *texObj,
+ GLint level, GLboolean layered, GLint layer, GLenum access,
+ GLenum format)
+{
+ u->Level = level;
+ u->Access = access;
+ u->Format = format;
+ u->_ActualFormat = _mesa_get_shader_image_format(format);
+
+ if (texObj && _mesa_tex_target_is_layered(texObj->Target)) {
+ u->Layered = layered;
+ u->Layer = layer;
+ } else {
+ u->Layered = GL_FALSE;
+ u->Layer = 0;
+ }
+ u->_Layer = (u->Layered ? 0 : u->Layer);
+
+ _mesa_reference_texobj(&u->TexObj, texObj);
+}
+
+static void
+bind_image_texture(struct gl_context *ctx, struct gl_texture_object *texObj,
+ GLuint unit, GLint level, GLboolean layered, GLint layer,
+ GLenum access, GLenum format)
+{
+ struct gl_image_unit *u;
+
+ u = &ctx->ImageUnits[unit];
+
+ FLUSH_VERTICES(ctx, 0);
+ ctx->NewDriverState |= ctx->DriverFlags.NewImageUnits;
+
+ set_image_binding(u, texObj, level, layered, layer, access, format);
+}
+
+void GLAPIENTRY
+_mesa_BindImageTexture_no_error(GLuint unit, GLuint texture, GLint level,
+ GLboolean layered, GLint layer, GLenum access,
+ GLenum format)
+{
+ struct gl_texture_object *texObj = NULL;
+
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (texture)
+ texObj = _mesa_lookup_texture(ctx, texture);
+
+ bind_image_texture(ctx, texObj, unit, level, layered, layer, access, format);
+}
+
void GLAPIENTRY
_mesa_BindImageTexture(GLuint unit, GLuint texture, GLint level,
GLboolean layered, GLint layer, GLenum access,
GLenum format)
{
+ struct gl_texture_object *texObj = NULL;
+
GET_CURRENT_CONTEXT(ctx);
- struct gl_image_unit *u;
if (!validate_bind_image_texture(ctx, unit, texture, level, layer, access,
- format))
+ format, true))
return;
- u = &ctx->ImageUnits[unit];
-
- FLUSH_VERTICES(ctx, 0);
- ctx->NewDriverState |= ctx->DriverFlags.NewImageUnits;
-
if (texture) {
- struct gl_texture_object *t = _mesa_lookup_texture(ctx, texture);
+ texObj = _mesa_lookup_texture(ctx, texture);
- if (!t) {
+ if (!texObj) {
_mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTexture(texture)");
return;
}
* However note that issue 7 of the GL_OES_texture_buffer spec
* recognizes that there is no way to create immutable buffer textures,
* so those are excluded from this requirement.
+ *
+ * Additionally, issue 10 of the OES_EGL_image_external_essl3 spec
+ * states that glBindImageTexture must accept external textures.
*/
- if (_mesa_is_gles(ctx) && !t->Immutable &&
- t->Target != GL_TEXTURE_BUFFER) {
+ if (_mesa_is_gles(ctx) && !texObj->Immutable &&
+ texObj->Target != GL_TEXTURE_BUFFER &&
+ texObj->Target != GL_TEXTURE_EXTERNAL_OES) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBindImageTexture(!immutable)");
return;
}
-
- _mesa_reference_texobj(&u->TexObj, t);
- } else {
- _mesa_reference_texobj(&u->TexObj, NULL);
}
- u->Level = level;
- u->Access = access;
- u->Format = format;
- u->_ActualFormat = _mesa_get_shader_image_format(format);
-
- if (u->TexObj && _mesa_tex_target_is_layered(u->TexObj->Target)) {
- u->Layered = layered;
- u->Layer = layer;
- u->_Layer = (u->Layered ? 0 : u->Layer);
- } else {
- u->Layered = GL_FALSE;
- u->Layer = 0;
- }
+ bind_image_texture(ctx, texObj, unit, level, layered, layer, access, format);
}
void GLAPIENTRY
-_mesa_BindImageTextures(GLuint first, GLsizei count, const GLuint *textures)
+_mesa_BindImageTextureEXT(GLuint index, GLuint texture, GLint level,
+ GLboolean layered, GLint layer, GLenum access,
+ GLint format)
{
+ struct gl_texture_object *texObj = NULL;
+
GET_CURRENT_CONTEXT(ctx);
- int i;
- if (!ctx->Extensions.ARB_shader_image_load_store) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glBindImageTextures()");
+ if (!validate_bind_image_texture(ctx, index, texture, level, layer, access,
+ format, false))
return;
- }
- if (first + count > ctx->Const.MaxImageUnits) {
- /* The ARB_multi_bind spec says:
- *
- * "An INVALID_OPERATION error is generated if <first> + <count>
- * is greater than the number of image units supported by
- * the implementation."
- */
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBindImageTextures(first=%u + count=%d > the value of "
- "GL_MAX_IMAGE_UNITS=%u)",
- first, count, ctx->Const.MaxImageUnits);
- return;
+ if (texture) {
+ texObj = _mesa_lookup_texture(ctx, texture);
+
+ if (!texObj) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBindImageTextureEXT(texture)");
+ return;
+ }
}
+ bind_image_texture(ctx, texObj, index, level, layered, layer, access, format);
+}
+
+static ALWAYS_INLINE void
+bind_image_textures(struct gl_context *ctx, GLuint first, GLuint count,
+ const GLuint *textures, bool no_error)
+{
+ int i;
+
/* Assume that at least one binding will be changed */
FLUSH_VERTICES(ctx, 0);
ctx->NewDriverState |= ctx->DriverFlags.NewImageUnits;
struct gl_image_unit *u = &ctx->ImageUnits[first + i];
const GLuint texture = textures ? textures[i] : 0;
- if (texture != 0) {
- struct gl_texture_object *texObj;
+ if (texture) {
+ struct gl_texture_object *texObj = u->TexObj;
GLenum tex_format;
- if (!u->TexObj || u->TexObj->Name != texture) {
+ if (!texObj || texObj->Name != texture) {
texObj = _mesa_lookup_texture_locked(ctx, texture);
- if (!texObj) {
+ if (!no_error && !texObj) {
/* The ARB_multi_bind spec says:
*
* "An INVALID_OPERATION error is generated if any value
"object)", i, texture);
continue;
}
- } else {
- texObj = u->TexObj;
}
if (texObj->Target == GL_TEXTURE_BUFFER) {
} else {
struct gl_texture_image *image = texObj->Image[0][0];
- if (!image || image->Width == 0 || image->Height == 0 ||
- image->Depth == 0) {
+ if (!no_error && (!image || image->Width == 0 ||
+ image->Height == 0 || image->Depth == 0)) {
/* The ARB_multi_bind spec says:
*
* "An INVALID_OPERATION error is generated if the width,
tex_format = image->InternalFormat;
}
- if (!_mesa_is_shader_image_format_supported(ctx, tex_format)) {
+ if (!no_error &&
+ !_mesa_is_shader_image_format_supported(ctx, tex_format)) {
/* The ARB_multi_bind spec says:
*
* "An INVALID_OPERATION error is generated if the internal
}
/* Update the texture binding */
- _mesa_reference_texobj(&u->TexObj, texObj);
- u->Level = 0;
- u->Layered = _mesa_tex_target_is_layered(texObj->Target);
- u->_Layer = u->Layer = 0;
- u->Access = GL_READ_WRITE;
- u->Format = tex_format;
- u->_ActualFormat = _mesa_get_shader_image_format(tex_format);
+ set_image_binding(u, texObj, 0,
+ _mesa_tex_target_is_layered(texObj->Target),
+ 0, GL_READ_WRITE, tex_format);
} else {
/* Unbind the texture from the unit */
- _mesa_reference_texobj(&u->TexObj, NULL);
- u->Level = 0;
- u->Layered = GL_FALSE;
- u->_Layer = u->Layer = 0;
- u->Access = GL_READ_ONLY;
- u->Format = GL_R8;
- u->_ActualFormat = MESA_FORMAT_R_UNORM8;
+ set_image_binding(u, NULL, 0, GL_FALSE, 0, GL_READ_ONLY, GL_R8);
}
}
_mesa_HashUnlockMutex(ctx->Shared->TexObjects);
}
+
+void GLAPIENTRY
+_mesa_BindImageTextures_no_error(GLuint first, GLsizei count,
+ const GLuint *textures)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ bind_image_textures(ctx, first, count, textures, true);
+}
+
+void GLAPIENTRY
+_mesa_BindImageTextures(GLuint first, GLsizei count, const GLuint *textures)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (!ctx->Extensions.ARB_shader_image_load_store) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBindImageTextures()");
+ return;
+ }
+
+ if (first + count > ctx->Const.MaxImageUnits) {
+ /* The ARB_multi_bind spec says:
+ *
+ * "An INVALID_OPERATION error is generated if <first> + <count>
+ * is greater than the number of image units supported by
+ * the implementation."
+ */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBindImageTextures(first=%u + count=%d > the value of "
+ "GL_MAX_IMAGE_UNITS=%u)",
+ first, count, ctx->Const.MaxImageUnits);
+ return;
+ }
+
+ bind_image_textures(ctx, first, count, textures, false);
+}
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