#include "glheader.h"
#include "context.h"
#include "enums.h"
-#include "imports.h"
+
#include "macros.h"
#include "teximage.h"
#include "texobj.h"
+#include "mipmap.h"
#include "texstorage.h"
#include "textureview.h"
+#include "stdbool.h"
#include "mtypes.h"
+/* Table 3.X.2 (Compatible internal formats for TextureView)
+ ---------------------------------------------------------------------------
+ | Class | Internal formats |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_128_BITS | RGBA32F, RGBA32UI, RGBA32I |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_96_BITS | RGB32F, RGB32UI, RGB32I |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_64_BITS | RGBA16F, RG32F, RGBA16UI, RG32UI, RGBA16I, |
+ | | RG32I, RGBA16, RGBA16_SNORM |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_48_BITS | RGB16, RGB16_SNORM, RGB16F, RGB16UI, RGB16I |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_32_BITS | RG16F, R11F_G11F_B10F, R32F, |
+ | | RGB10_A2UI, RGBA8UI, RG16UI, R32UI, |
+ | | RGBA8I, RG16I, R32I, RGB10_A2, RGBA8, RG16, |
+ | | RGBA8_SNORM, RG16_SNORM, SRGB8_ALPHA8, RGB9_E5 |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_24_BITS | RGB8, RGB8_SNORM, SRGB8, RGB8UI, RGB8I |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_16_BITS | R16F, RG8UI, R16UI, RG8I, R16I, RG8, R16, |
+ | | RG8_SNORM, R16_SNORM |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_8_BITS | R8UI, R8I, R8, R8_SNORM |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_RGTC1_RED | COMPRESSED_RED_RGTC1, |
+ | | COMPRESSED_SIGNED_RED_RGTC1 |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_RGTC2_RG | COMPRESSED_RG_RGTC2, |
+ | | COMPRESSED_SIGNED_RG_RGTC2 |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_BPTC_UNORM | COMPRESSED_RGBA_BPTC_UNORM, |
+ | | COMPRESSED_SRGB_ALPHA_BPTC_UNORM |
+ ---------------------------------------------------------------------------
+ | VIEW_CLASS_BPTC_FLOAT | COMPRESSED_RGB_BPTC_SIGNED_FLOAT, |
+ | | COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT |
+ ---------------------------------------------------------------------------
+ */
+
+#define VIEW_CLASS_GLES(x) (GL_VIEW_CLASS_BPTC_FLOAT + 1 + x)
+#define VIEW_CLASS_EAC_R11 VIEW_CLASS_GLES(0)
+#define VIEW_CLASS_EAC_RG11 VIEW_CLASS_GLES(1)
+#define VIEW_CLASS_ETC2_RGB VIEW_CLASS_GLES(2)
+#define VIEW_CLASS_ETC2_RGBA VIEW_CLASS_GLES(3)
+#define VIEW_CLASS_ETC2_EAC_RGBA VIEW_CLASS_GLES(4)
+#define VIEW_CLASS_ASTC_4x4_RGBA VIEW_CLASS_GLES(5)
+#define VIEW_CLASS_ASTC_5x4_RGBA VIEW_CLASS_GLES(6)
+#define VIEW_CLASS_ASTC_5x5_RGBA VIEW_CLASS_GLES(7)
+#define VIEW_CLASS_ASTC_6x5_RGBA VIEW_CLASS_GLES(8)
+#define VIEW_CLASS_ASTC_6x6_RGBA VIEW_CLASS_GLES(9)
+#define VIEW_CLASS_ASTC_8x5_RGBA VIEW_CLASS_GLES(10)
+#define VIEW_CLASS_ASTC_8x6_RGBA VIEW_CLASS_GLES(11)
+#define VIEW_CLASS_ASTC_8x8_RGBA VIEW_CLASS_GLES(12)
+#define VIEW_CLASS_ASTC_10x5_RGBA VIEW_CLASS_GLES(13)
+#define VIEW_CLASS_ASTC_10x6_RGBA VIEW_CLASS_GLES(14)
+#define VIEW_CLASS_ASTC_10x8_RGBA VIEW_CLASS_GLES(15)
+#define VIEW_CLASS_ASTC_10x10_RGBA VIEW_CLASS_GLES(16)
+#define VIEW_CLASS_ASTC_12x10_RGBA VIEW_CLASS_GLES(17)
+#define VIEW_CLASS_ASTC_12x12_RGBA VIEW_CLASS_GLES(18)
+#define VIEW_CLASS_ASTC_3x3x3_RGBA VIEW_CLASS_GLES(19)
+#define VIEW_CLASS_ASTC_4x3x3_RGBA VIEW_CLASS_GLES(20)
+#define VIEW_CLASS_ASTC_4x4x3_RGBA VIEW_CLASS_GLES(21)
+#define VIEW_CLASS_ASTC_4x4x4_RGBA VIEW_CLASS_GLES(22)
+#define VIEW_CLASS_ASTC_5x4x4_RGBA VIEW_CLASS_GLES(23)
+#define VIEW_CLASS_ASTC_5x5x4_RGBA VIEW_CLASS_GLES(24)
+#define VIEW_CLASS_ASTC_5x5x5_RGBA VIEW_CLASS_GLES(25)
+#define VIEW_CLASS_ASTC_6x5x5_RGBA VIEW_CLASS_GLES(26)
+#define VIEW_CLASS_ASTC_6x6x5_RGBA VIEW_CLASS_GLES(27)
+#define VIEW_CLASS_ASTC_6x6x6_RGBA VIEW_CLASS_GLES(28)
+
+
+struct internal_format_class_info {
+ GLenum view_class;
+ GLenum internal_format;
+};
+static const struct internal_format_class_info compatible_internal_formats[] = {
+ {GL_VIEW_CLASS_128_BITS, GL_RGBA32F},
+ {GL_VIEW_CLASS_128_BITS, GL_RGBA32UI},
+ {GL_VIEW_CLASS_128_BITS, GL_RGBA32I},
+ {GL_VIEW_CLASS_96_BITS, GL_RGB32F},
+ {GL_VIEW_CLASS_96_BITS, GL_RGB32UI},
+ {GL_VIEW_CLASS_96_BITS, GL_RGB32I},
+ {GL_VIEW_CLASS_64_BITS, GL_RGBA16F},
+ {GL_VIEW_CLASS_64_BITS, GL_RG32F},
+ {GL_VIEW_CLASS_64_BITS, GL_RGBA16UI},
+ {GL_VIEW_CLASS_64_BITS, GL_RG32UI},
+ {GL_VIEW_CLASS_64_BITS, GL_RGBA16I},
+ {GL_VIEW_CLASS_64_BITS, GL_RG32I},
+ {GL_VIEW_CLASS_64_BITS, GL_RGBA16},
+ {GL_VIEW_CLASS_64_BITS, GL_RGBA16_SNORM},
+ {GL_VIEW_CLASS_48_BITS, GL_RGB16},
+ {GL_VIEW_CLASS_48_BITS, GL_RGB16_SNORM},
+ {GL_VIEW_CLASS_48_BITS, GL_RGB16F},
+ {GL_VIEW_CLASS_48_BITS, GL_RGB16UI},
+ {GL_VIEW_CLASS_48_BITS, GL_RGB16I},
+ {GL_VIEW_CLASS_32_BITS, GL_RG16F},
+ {GL_VIEW_CLASS_32_BITS, GL_R11F_G11F_B10F},
+ {GL_VIEW_CLASS_32_BITS, GL_R32F},
+ {GL_VIEW_CLASS_32_BITS, GL_RGB10_A2UI},
+ {GL_VIEW_CLASS_32_BITS, GL_RGBA8UI},
+ {GL_VIEW_CLASS_32_BITS, GL_RG16UI},
+ {GL_VIEW_CLASS_32_BITS, GL_R32UI},
+ {GL_VIEW_CLASS_32_BITS, GL_RGBA8I},
+ {GL_VIEW_CLASS_32_BITS, GL_RG16I},
+ {GL_VIEW_CLASS_32_BITS, GL_R32I},
+ {GL_VIEW_CLASS_32_BITS, GL_RGB10_A2},
+ {GL_VIEW_CLASS_32_BITS, GL_RGBA8},
+ {GL_VIEW_CLASS_32_BITS, GL_RG16},
+ {GL_VIEW_CLASS_32_BITS, GL_RGBA8_SNORM},
+ {GL_VIEW_CLASS_32_BITS, GL_RG16_SNORM},
+ {GL_VIEW_CLASS_32_BITS, GL_SRGB8_ALPHA8},
+ {GL_VIEW_CLASS_32_BITS, GL_RGB9_E5},
+ {GL_VIEW_CLASS_24_BITS, GL_RGB8},
+ {GL_VIEW_CLASS_24_BITS, GL_RGB8_SNORM},
+ {GL_VIEW_CLASS_24_BITS, GL_SRGB8},
+ {GL_VIEW_CLASS_24_BITS, GL_RGB8UI},
+ {GL_VIEW_CLASS_24_BITS, GL_RGB8I},
+ {GL_VIEW_CLASS_16_BITS, GL_R16F},
+ {GL_VIEW_CLASS_16_BITS, GL_RG8UI},
+ {GL_VIEW_CLASS_16_BITS, GL_R16UI},
+ {GL_VIEW_CLASS_16_BITS, GL_RG8I},
+ {GL_VIEW_CLASS_16_BITS, GL_R16I},
+ {GL_VIEW_CLASS_16_BITS, GL_RG8},
+ {GL_VIEW_CLASS_16_BITS, GL_R16},
+ {GL_VIEW_CLASS_16_BITS, GL_RG8_SNORM},
+ {GL_VIEW_CLASS_16_BITS, GL_R16_SNORM},
+ {GL_VIEW_CLASS_8_BITS, GL_R8UI},
+ {GL_VIEW_CLASS_8_BITS, GL_R8I},
+ {GL_VIEW_CLASS_8_BITS, GL_R8},
+ {GL_VIEW_CLASS_8_BITS, GL_R8_SNORM},
+ {GL_VIEW_CLASS_8_BITS, GL_SR8_EXT},
+ {GL_VIEW_CLASS_RGTC1_RED, GL_COMPRESSED_RED_RGTC1},
+ {GL_VIEW_CLASS_RGTC1_RED, GL_COMPRESSED_SIGNED_RED_RGTC1},
+ {GL_VIEW_CLASS_RGTC2_RG, GL_COMPRESSED_RG_RGTC2},
+ {GL_VIEW_CLASS_RGTC2_RG, GL_COMPRESSED_SIGNED_RG_RGTC2},
+ {GL_VIEW_CLASS_BPTC_UNORM, GL_COMPRESSED_RGBA_BPTC_UNORM_ARB},
+ {GL_VIEW_CLASS_BPTC_UNORM, GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB},
+ {GL_VIEW_CLASS_BPTC_FLOAT, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB},
+ {GL_VIEW_CLASS_BPTC_FLOAT, GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB},
+};
+
+static const struct internal_format_class_info s3tc_compatible_internal_formats[] = {
+ {GL_VIEW_CLASS_S3TC_DXT1_RGB, GL_COMPRESSED_RGB_S3TC_DXT1_EXT},
+ {GL_VIEW_CLASS_S3TC_DXT1_RGB, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT},
+ {GL_VIEW_CLASS_S3TC_DXT1_RGBA, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT},
+ {GL_VIEW_CLASS_S3TC_DXT1_RGBA, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT},
+ {GL_VIEW_CLASS_S3TC_DXT3_RGBA, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT},
+ {GL_VIEW_CLASS_S3TC_DXT3_RGBA, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT},
+ {GL_VIEW_CLASS_S3TC_DXT5_RGBA, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT},
+ {GL_VIEW_CLASS_S3TC_DXT5_RGBA, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT},
+};
+
+static const struct internal_format_class_info gles_etc2_compatible_internal_formats[] = {
+ {VIEW_CLASS_EAC_R11, GL_COMPRESSED_R11_EAC},
+ {VIEW_CLASS_EAC_R11, GL_COMPRESSED_SIGNED_R11_EAC},
+ {VIEW_CLASS_EAC_RG11, GL_COMPRESSED_RG11_EAC},
+ {VIEW_CLASS_EAC_RG11, GL_COMPRESSED_SIGNED_RG11_EAC},
+ {VIEW_CLASS_ETC2_RGB, GL_COMPRESSED_RGB8_ETC2},
+ {VIEW_CLASS_ETC2_RGB, GL_COMPRESSED_SRGB8_ETC2},
+ {VIEW_CLASS_ETC2_RGBA, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2},
+ {VIEW_CLASS_ETC2_RGBA, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2},
+ {VIEW_CLASS_ETC2_EAC_RGBA, GL_COMPRESSED_RGBA8_ETC2_EAC},
+ {VIEW_CLASS_ETC2_EAC_RGBA, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC},
+};
+
+static const struct internal_format_class_info gles_astc_compatible_internal_formats[] = {
+#define ASTC_FMT(size) \
+ {VIEW_CLASS_ASTC_##size##_RGBA, GL_COMPRESSED_RGBA_ASTC_##size##_KHR}, \
+ {VIEW_CLASS_ASTC_##size##_RGBA, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_##size##_KHR}
+
+ ASTC_FMT(4x4),
+ ASTC_FMT(5x4),
+ ASTC_FMT(5x5),
+ ASTC_FMT(6x5),
+ ASTC_FMT(6x6),
+ ASTC_FMT(8x5),
+ ASTC_FMT(8x6),
+ ASTC_FMT(8x8),
+ ASTC_FMT(10x5),
+ ASTC_FMT(10x6),
+ ASTC_FMT(10x8),
+ ASTC_FMT(10x10),
+ ASTC_FMT(12x10),
+ ASTC_FMT(12x12),
+#undef ASTC_FMT
+};
+
+static const struct internal_format_class_info gles_astc_3d_compatible_internal_formats[] = {
+#define ASTC_FMT(size) \
+ {VIEW_CLASS_ASTC_##size##_RGBA, GL_COMPRESSED_RGBA_ASTC_##size##_OES}, \
+ {VIEW_CLASS_ASTC_##size##_RGBA, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_##size##_OES}
+
+ ASTC_FMT(3x3x3),
+ ASTC_FMT(4x3x3),
+ ASTC_FMT(4x4x3),
+ ASTC_FMT(4x4x4),
+ ASTC_FMT(5x4x4),
+ ASTC_FMT(5x5x4),
+ ASTC_FMT(5x5x5),
+ ASTC_FMT(6x5x5),
+ ASTC_FMT(6x6x5),
+ ASTC_FMT(6x6x6),
+#undef ASTC_FMT
+};
+
+GLenum
+_mesa_texture_view_lookup_view_class(const struct gl_context *ctx, GLenum internalformat)
+{
+ GLuint i;
+
+ for (i = 0; i < ARRAY_SIZE(compatible_internal_formats); i++) {
+ if (compatible_internal_formats[i].internal_format == internalformat)
+ return compatible_internal_formats[i].view_class;
+ }
+
+ if (ctx->Extensions.EXT_texture_compression_s3tc &&
+ ctx->Extensions.EXT_texture_sRGB) {
+ for (i = 0; i < ARRAY_SIZE(s3tc_compatible_internal_formats); i++) {
+ if (s3tc_compatible_internal_formats[i].internal_format
+ == internalformat)
+ return s3tc_compatible_internal_formats[i].view_class;
+ }
+ }
+
+ if (_mesa_is_gles3(ctx)) {
+ for (i = 0; i < ARRAY_SIZE(gles_etc2_compatible_internal_formats); i++) {
+ if (gles_etc2_compatible_internal_formats[i].internal_format
+ == internalformat)
+ return gles_etc2_compatible_internal_formats[i].view_class;
+ }
+
+ if (ctx->Extensions.KHR_texture_compression_astc_ldr) {
+ for (i = 0; i < ARRAY_SIZE(gles_astc_compatible_internal_formats); i++) {
+ if (gles_astc_compatible_internal_formats[i].internal_format
+ == internalformat)
+ return gles_astc_compatible_internal_formats[i].view_class;
+ }
+ }
+
+ if (ctx->Extensions.OES_texture_compression_astc) {
+ for (i = 0; i < ARRAY_SIZE(gles_astc_3d_compatible_internal_formats); i++) {
+ if (gles_astc_3d_compatible_internal_formats[i].internal_format
+ == internalformat)
+ return gles_astc_3d_compatible_internal_formats[i].view_class;
+ }
+ }
+ }
+ return GL_FALSE;
+}
+
+/**
+ * Initialize new texture's gl_texture_image structures. Will not call driver
+ * to allocate new space, simply record relevant layer, face, format, etc.
+ * \return GL_FALSE if any error, GL_TRUE otherwise.
+ */
+static GLboolean
+initialize_texture_fields(struct gl_context *ctx,
+ GLenum target,
+ struct gl_texture_object *texObj,
+ GLint levels,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum internalFormat, mesa_format texFormat,
+ GLuint numSamples, GLboolean fixedSampleLocations)
+{
+ const GLuint numFaces = _mesa_num_tex_faces(target);
+ GLint level, levelWidth = width, levelHeight = height, levelDepth = depth;
+ GLuint face;
+
+ /* Pretend we are bound to initialize the gl_texture_image structs */
+ texObj->Target = target;
+
+ /* Set up all the texture object's gl_texture_images */
+ for (level = 0; level < levels; level++) {
+ for (face = 0; face < numFaces; face++) {
+ struct gl_texture_image *texImage;
+ const GLenum faceTarget = _mesa_cube_face_target(target, face);
+
+ texImage = _mesa_get_tex_image(ctx, texObj, faceTarget, level);
+
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexStorage");
+ return GL_FALSE;
+ }
+
+ _mesa_init_teximage_fields_ms(ctx, texImage,
+ levelWidth, levelHeight, levelDepth,
+ 0, internalFormat, texFormat,
+ numSamples, fixedSampleLocations);
+ }
+
+ _mesa_next_mipmap_level_size(target, 0,
+ levelWidth, levelHeight, levelDepth,
+ &levelWidth, &levelHeight, &levelDepth);
+ }
+
+ /* "unbind" */
+ texObj->Target = 0;
+
+ return GL_TRUE;
+}
+
+#define RETURN_IF_SUPPORTED(t) do { \
+ if (newTarget == GL_ ## t) \
+ return true; \
+} while (0)
+
+/**
+ * Check for compatible target
+ * If an error is found, record it with _mesa_error()
+ * \return false if any error, true otherwise.
+ */
+static bool
+target_valid(struct gl_context *ctx, GLenum origTarget, GLenum newTarget)
+{
+ /*
+ * From ARB_texture_view spec:
+ ---------------------------------------------------------------------------------------------------------
+ | Original target | Valid new targets |
+ ---------------------------------------------------------------------------------------------------------
+ | TEXTURE_1D | TEXTURE_1D, TEXTURE_1D_ARRAY |
+ | ------------------------------------------------------------------------------------------------------- |
+ | TEXTURE_2D | TEXTURE_2D, TEXTURE_2D_ARRAY |
+ | ------------------------------------------------------------------------------------------------------- |
+ | TEXTURE_3D | TEXTURE_3D |
+ | ------------------------------------------------------------------------------------------------------- |
+ | TEXTURE_CUBE_MAP | TEXTURE_CUBE_MAP, TEXTURE_2D, TEXTURE_2D_ARRAY, TEXTURE_CUBE_MAP_ARRAY |
+ | ------------------------------------------------------------------------------------------------------- |
+ | TEXTURE_RECTANGLE | TEXTURE_RECTANGLE |
+ | ------------------------------------------------------------------------------------------------------- |
+ | TEXTURE_BUFFER | <none> |
+ | ------------------------------------------------------------------------------------------------------- |
+ | TEXTURE_1D_ARRAY | TEXTURE_1D_ARRAY, TEXTURE_1D |
+ | ------------------------------------------------------------------------------------------------------- |
+ | TEXTURE_2D_ARRAY | TEXTURE_2D_ARRAY, TEXTURE_2D, TEXTURE_CUBE_MAP, TEXTURE_CUBE_MAP_ARRAY |
+ | ------------------------------------------------------------------------------------------------------- |
+ | TEXTURE_CUBE_MAP_ARRAY | TEXTURE_CUBE_MAP_ARRAY, TEXTURE_2D_ARRAY, TEXTURE_2D, TEXTURE_CUBE_MAP |
+ | ------------------------------------------------------------------------------------------------------- |
+ | TEXTURE_2D_MULTISAMPLE | TEXTURE_2D_MULTISAMPLE, TEXTURE_2D_MULTISAMPLE_ARRAY |
+ | ------------------------------------------------------------------------------------------------------- |
+ | TEXTURE_2D_MULTISAMPLE_ARRAY | TEXTURE_2D_MULTISAMPLE, TEXTURE_2D_MULTISAMPLE_ARRAY |
+ ---------------------------------------------------------------------------------------------------------
+ */
+
+ switch (origTarget) {
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_1D_ARRAY:
+ RETURN_IF_SUPPORTED(TEXTURE_1D);
+ RETURN_IF_SUPPORTED(TEXTURE_1D_ARRAY);
+ break;
+ case GL_TEXTURE_2D:
+ RETURN_IF_SUPPORTED(TEXTURE_2D);
+ RETURN_IF_SUPPORTED(TEXTURE_2D_ARRAY);
+ break;
+ case GL_TEXTURE_3D:
+ RETURN_IF_SUPPORTED(TEXTURE_3D);
+ break;
+ case GL_TEXTURE_RECTANGLE:
+ RETURN_IF_SUPPORTED(TEXTURE_RECTANGLE);
+ break;
+ case GL_TEXTURE_CUBE_MAP:
+ case GL_TEXTURE_2D_ARRAY:
+ case GL_TEXTURE_CUBE_MAP_ARRAY:
+ RETURN_IF_SUPPORTED(TEXTURE_2D);
+ RETURN_IF_SUPPORTED(TEXTURE_2D_ARRAY);
+ RETURN_IF_SUPPORTED(TEXTURE_CUBE_MAP);
+ RETURN_IF_SUPPORTED(TEXTURE_CUBE_MAP_ARRAY);
+ break;
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ RETURN_IF_SUPPORTED(TEXTURE_2D_MULTISAMPLE);
+ RETURN_IF_SUPPORTED(TEXTURE_2D_MULTISAMPLE_ARRAY);
+ break;
+ }
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTextureView(illegal target=%s)",
+ _mesa_enum_to_string(newTarget));
+ return false;
+}
+#undef RETURN_IF_SUPPORTED
+
+/**
+ * Check for compatible format
+ * If an error is found, record it with _mesa_error()
+ * \return false if any error, true otherwise.
+ */
+bool
+_mesa_texture_view_compatible_format(const struct gl_context *ctx,
+ GLenum origInternalFormat,
+ GLenum newInternalFormat)
+{
+ unsigned int origViewClass, newViewClass;
+
+ /* The two textures' internal formats must be compatible according to
+ * Table 3.X.2 (Compatible internal formats for TextureView)
+ * if the internal format exists in that table the view class must match.
+ * The internal formats must be identical if not in that table,
+ * or an INVALID_OPERATION error is generated.
+ */
+ if (origInternalFormat == newInternalFormat)
+ return true;
+
+ origViewClass = _mesa_texture_view_lookup_view_class(ctx, origInternalFormat);
+ newViewClass = _mesa_texture_view_lookup_view_class(ctx, newInternalFormat);
+ if ((origViewClass == newViewClass) && origViewClass != false)
+ return true;
+
+ return false;
+}
+
+/**
+ * Helper function for TexStorage and teximagemultisample to set immutable
+ * texture state needed by ARB_texture_view.
+ */
+void
+_mesa_set_texture_view_state(struct gl_context *ctx,
+ struct gl_texture_object *texObj,
+ GLenum target, GLuint levels)
+{
+ struct gl_texture_image *texImage;
+
+ /* Get a reference to what will become this View's base level */
+ texImage = _mesa_select_tex_image(texObj, target, 0);
+
+ /* When an immutable texture is created via glTexStorage or
+ * glTexImageMultisample,
+ * TEXTURE_IMMUTABLE_FORMAT becomes TRUE.
+ * TEXTURE_IMMUTABLE_LEVELS and TEXTURE_VIEW_NUM_LEVELS become levels.
+ * If the texture target is TEXTURE_1D_ARRAY then
+ * TEXTURE_VIEW_NUM_LAYERS becomes height.
+ * If the texture target is TEXTURE_2D_ARRAY, TEXTURE_CUBE_MAP_ARRAY,
+ * or TEXTURE_2D_MULTISAMPLE_ARRAY then TEXTURE_VIEW_NUM_LAYERS becomes
+ * depth.
+ * If the texture target is TEXTURE_CUBE_MAP, then
+ * TEXTURE_VIEW_NUM_LAYERS becomes 6.
+ * For any other texture target, TEXTURE_VIEW_NUM_LAYERS becomes 1.
+ *
+ * ARB_texture_multisample: Multisample textures do
+ * not have multiple image levels.
+ */
+
+ texObj->Immutable = GL_TRUE;
+ texObj->ImmutableLevels = levels;
+ texObj->MinLevel = 0;
+ texObj->NumLevels = levels;
+ texObj->MinLayer = 0;
+ texObj->NumLayers = 1;
+ switch (target) {
+ case GL_TEXTURE_1D_ARRAY:
+ texObj->NumLayers = texImage->Height;
+ break;
+
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ texObj->NumLevels = 1;
+ texObj->ImmutableLevels = 1;
+ break;
+
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ texObj->NumLevels = 1;
+ texObj->ImmutableLevels = 1;
+ /* fallthrough - to set NumLayers */
+
+ case GL_TEXTURE_2D_ARRAY:
+ case GL_TEXTURE_CUBE_MAP_ARRAY:
+ texObj->NumLayers = texImage->Depth;
+ break;
+
+ case GL_TEXTURE_CUBE_MAP:
+ texObj->NumLayers = 6;
+ break;
+ }
+}
+
/**
* glTextureView (ARB_texture_view)
* If an error is found, record it with _mesa_error()
* \return none.
*/
+static ALWAYS_INLINE void
+texture_view(struct gl_context *ctx, struct gl_texture_object *origTexObj,
+ struct gl_texture_object *texObj, GLenum target,
+ GLenum internalformat, GLuint minlevel, GLuint numlevels,
+ GLuint minlayer, GLuint numlayers, bool no_error)
+{
+ struct gl_texture_image *origTexImage;
+ GLuint newViewNumLevels, newViewNumLayers;
+ GLsizei width, height, depth;
+ mesa_format texFormat;
+ GLboolean sizeOK, dimensionsOK;
+ GLenum faceTarget;
+
+ texFormat = _mesa_choose_texture_format(ctx, texObj, target, 0,
+ internalformat, GL_NONE, GL_NONE);
+ if (texFormat == MESA_FORMAT_NONE) return;
+
+ newViewNumLevels = MIN2(numlevels, origTexObj->NumLevels - minlevel);
+ newViewNumLayers = MIN2(numlayers, origTexObj->NumLayers - minlayer);
+
+ faceTarget = _mesa_cube_face_target(origTexObj->Target, minlayer);
+
+ /* Get a reference to what will become this View's base level */
+ origTexImage = _mesa_select_tex_image(origTexObj, faceTarget, minlevel);
+ width = origTexImage->Width;
+ height = origTexImage->Height;
+ depth = origTexImage->Depth;
+
+ /* Adjust width, height, depth to be appropriate for new target */
+ switch (target) {
+ case GL_TEXTURE_1D:
+ height = 1;
+ break;
+
+ case GL_TEXTURE_3D:
+ break;
+
+ case GL_TEXTURE_1D_ARRAY:
+ height = (GLsizei) newViewNumLayers;
+ break;
+
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_TEXTURE_RECTANGLE:
+ depth = 1;
+ break;
+ case GL_TEXTURE_CUBE_MAP:
+ /* If the new texture's target is TEXTURE_CUBE_MAP, the clamped
+ * <numlayers> must be equal to 6.
+ */
+ if (!no_error && newViewNumLayers != 6) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTextureView(clamped numlayers %d != 6)",
+ newViewNumLayers);
+ return;
+ }
+ depth = 1;
+ break;
+
+ case GL_TEXTURE_2D_ARRAY:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ depth = newViewNumLayers;
+ break;
+ case GL_TEXTURE_CUBE_MAP_ARRAY:
+ /* If the new texture's target is TEXTURE_CUBE_MAP_ARRAY,
+ * then <numlayers> counts layer-faces rather than layers,
+ * and the clamped <numlayers> must be a multiple of 6.
+ * Otherwise, the error INVALID_VALUE is generated.
+ */
+ if (!no_error && (newViewNumLayers % 6) != 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTextureView(clamped numlayers %d is not"
+ " a multiple of 6)",
+ newViewNumLayers);
+ return;
+ }
+ depth = newViewNumLayers;
+ break;
+ }
+
+ if (!no_error) {
+ /* If the dimensions of the original texture are larger than the maximum
+ * supported dimensions of the new target, the error INVALID_OPERATION is
+ * generated. For example, if the original texture has a TEXTURE_2D_ARRAY
+ * target and its width is greater than MAX_CUBE_MAP_TEXTURE_SIZE, an
+ * error will be generated if TextureView is called to create a
+ * TEXTURE_CUBE_MAP view.
+ */
+ dimensionsOK = _mesa_legal_texture_dimensions(ctx, target, 0,
+ width, height, depth, 0);
+ if (!dimensionsOK) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTextureView(invalid width or height or depth)");
+ return;
+ }
+
+ sizeOK = ctx->Driver.TestProxyTexImage(ctx, target, 1, 0, texFormat,
+ origTexImage->NumSamples,
+ width, height, depth);
+ if (!sizeOK) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTextureView(invalid texture size)");
+ return;
+ }
+
+ /* If <target> is TEXTURE_1D, TEXTURE_2D, TEXTURE_3D, TEXTURE_RECTANGLE,
+ * or TEXTURE_2D_MULTISAMPLE and <numlayers> does not equal 1, the error
+ * INVALID_VALUE is generated.
+ */
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_3D:
+ case GL_TEXTURE_RECTANGLE:
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ if (numlayers != 1) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTextureView(numlayers %d != 1)",
+ numlayers);
+ return;
+ }
+ break;
+ case GL_TEXTURE_CUBE_MAP:
+ break;
+ case GL_TEXTURE_CUBE_MAP_ARRAY:
+ break;
+ }
+
+ /* If the new texture's target is TEXTURE_CUBE_MAP or
+ * TEXTURE_CUBE_MAP_ARRAY, the width and height of the original texture's
+ * levels must be equal otherwise the error INVALID_OPERATION is
+ * generated.
+ */
+ if ((target == GL_TEXTURE_CUBE_MAP || target == GL_TEXTURE_CUBE_MAP_ARRAY)
+ && (origTexImage->Width != origTexImage->Height)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTextureView(origtexture width (%d) != height (%d))",
+ origTexImage->Width, origTexImage->Height);
+ return;
+ }
+ }
+
+ /* When the original texture's target is TEXTURE_CUBE_MAP, the layer
+ * parameters are interpreted in the same order as if it were a
+ * TEXTURE_CUBE_MAP_ARRAY with 6 layer-faces.
+ */
+
+ /* If the internal format does not exactly match the internal format of the
+ * original texture, the contents of the memory are reinterpreted in the
+ * same manner as for image bindings described in
+ * section 3.9.20 (Texture Image Loads and Stores).
+ */
+
+ /* TEXTURE_BASE_LEVEL and TEXTURE_MAX_LEVEL are interpreted
+ * relative to the view and not relative to the original data store.
+ */
+
+ if (!initialize_texture_fields(ctx, target, texObj, newViewNumLevels,
+ width, height, depth,
+ internalformat, texFormat,
+ origTexImage->NumSamples,
+ origTexImage->FixedSampleLocations)) {
+ return; /* Already recorded error */
+ }
+
+ texObj->MinLevel = origTexObj->MinLevel + minlevel;
+ texObj->MinLayer = origTexObj->MinLayer + minlayer;
+ texObj->NumLevels = newViewNumLevels;
+ texObj->NumLayers = newViewNumLayers;
+ texObj->Immutable = GL_TRUE;
+ texObj->ImmutableLevels = origTexObj->ImmutableLevels;
+ texObj->Target = target;
+ texObj->TargetIndex = _mesa_tex_target_to_index(ctx, target);
+ assert(texObj->TargetIndex < NUM_TEXTURE_TARGETS);
+
+ if (ctx->Driver.TextureView != NULL &&
+ !ctx->Driver.TextureView(ctx, texObj, origTexObj)) {
+ return; /* driver recorded error */
+ }
+}
+
+void GLAPIENTRY
+_mesa_TextureView_no_error(GLuint texture, GLenum target, GLuint origtexture,
+ GLenum internalformat,
+ GLuint minlevel, GLuint numlevels,
+ GLuint minlayer, GLuint numlayers)
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_object *origTexObj;
+
+ GET_CURRENT_CONTEXT(ctx);
+
+ origTexObj = _mesa_lookup_texture(ctx, origtexture);
+ texObj = _mesa_lookup_texture(ctx, texture);
+
+ texture_view(ctx, origTexObj, texObj, target, internalformat, minlevel,
+ numlevels, minlayer, numlayers, true);
+}
+
void GLAPIENTRY
_mesa_TextureView(GLuint texture, GLenum target, GLuint origtexture,
GLenum internalformat,
GLuint minlevel, GLuint numlevels,
GLuint minlayer, GLuint numlayers)
{
+ struct gl_texture_object *texObj;
+ struct gl_texture_object *origTexObj;
+ GLuint newViewMinLevel, newViewMinLayer;
+
GET_CURRENT_CONTEXT(ctx);
if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE))
- _mesa_debug(ctx, "glTextureView (unfinished) %d %s %d %s %d %d %d %d\n",
- texture, _mesa_lookup_enum_by_nr(target), origtexture,
- _mesa_lookup_enum_by_nr(internalformat),
+ _mesa_debug(ctx, "glTextureView %d %s %d %s %d %d %d %d\n",
+ texture, _mesa_enum_to_string(target), origtexture,
+ _mesa_enum_to_string(internalformat),
minlevel, numlevels, minlayer, numlayers);
+ if (origtexture == 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTextureView(origtexture = %u)",
+ origtexture);
+ return;
+ }
+
+ /* Need original texture information to validate arguments */
+ origTexObj = _mesa_lookup_texture(ctx, origtexture);
+
+ /* If <origtexture> is not the name of a texture, INVALID_VALUE
+ * is generated.
+ */
+ if (!origTexObj) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTextureView(origtexture = %u)",
+ origtexture);
+ return;
+ }
+
+ /* If <origtexture>'s TEXTURE_IMMUTABLE_FORMAT value is not TRUE,
+ * INVALID_OPERATION is generated.
+ */
+ if (!origTexObj->Immutable) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTextureView(origtexture not immutable)");
+ return;
+ }
+
+ /* If <texture> is 0, INVALID_VALUE is generated. */
+ if (texture == 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTextureView(texture = 0)");
+ return;
+ }
+
+ /* If <texture> is not a valid name returned by GenTextures,
+ * the error INVALID_OPERATION is generated.
+ */
+ texObj = _mesa_lookup_texture(ctx, texture);
+ if (texObj == NULL) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTextureView(texture = %u non-gen name)", texture);
+ return;
+ }
+
+ /* If <texture> has already been bound and given a target, then
+ * the error INVALID_OPERATION is generated.
+ */
+ if (texObj->Target) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTextureView(texture = %u already bound)", texture);
+ return;
+ }
+
+ /* Check for compatible target */
+ if (!target_valid(ctx, origTexObj->Target, target)) {
+ return; /* error was recorded */
+ }
+
+ /* minlevel and minlayer are relative to the view of origtexture.
+ * If minlevel or minlayer is greater than level or layer, respectively,
+ * return INVALID_VALUE.
+ */
+ newViewMinLevel = origTexObj->MinLevel + minlevel;
+ newViewMinLayer = origTexObj->MinLayer + minlayer;
+ if (newViewMinLevel >= (origTexObj->MinLevel + origTexObj->NumLevels)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTextureView(new minlevel (%d) > orig minlevel (%d)"
+ " + orig numlevels (%d))",
+ newViewMinLevel, origTexObj->MinLevel, origTexObj->NumLevels);
+ return;
+ }
+
+ if (newViewMinLayer >= (origTexObj->MinLayer + origTexObj->NumLayers)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTextureView(new minlayer (%d) > orig minlayer (%d)"
+ " + orig numlayers (%d))",
+ newViewMinLayer, origTexObj->MinLayer, origTexObj->NumLayers);
+ return;
+ }
+
+ if (!_mesa_texture_view_compatible_format(ctx,
+ origTexObj->Image[0][0]->InternalFormat,
+ internalformat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTextureView(internalformat %s not compatible with origtexture %s)",
+ _mesa_enum_to_string(internalformat),
+ _mesa_enum_to_string(origTexObj->Image[0][0]->InternalFormat));
+ return;
+ }
+ texture_view(ctx, origTexObj, texObj, target, internalformat, minlevel,
+ numlevels, minlayer, numlayers, false);
}
projects / mesa.git / blobdiff