#include "context.h"
#include "glformats.h"
#include "formats.h"
+#include "texcompress.h"
#include "enums.h"
enum {
else
return -1;
case GL_UNSIGNED_INT_24_8_EXT:
- if (format == GL_DEPTH_STENCIL_EXT)
+ if (format == GL_DEPTH_COMPONENT ||
+ format == GL_DEPTH_STENCIL_EXT)
return sizeof(GLuint);
else
return -1;
}
}
+/**
+ * Test if the given format is an ASTC format.
+ */
+GLboolean
+_mesa_is_astc_format(GLenum internalFormat)
+{
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGBA_ASTC_4x4_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_5x4_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_5x5_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_6x5_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_6x6_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_8x5_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_8x6_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_8x8_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_10x5_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_10x6_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_10x8_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_10x10_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_12x10_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_12x12_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:
+ return true;
+ default:
+ return false;
+ }
+}
+
/**
* Test if the given format is an integer (non-normalized) format.
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
+ case GL_COMPRESSED_RGBA_ASTC_4x4_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_5x4_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_5x5_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_6x5_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_6x6_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_8x5_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_8x6_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_8x8_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_10x5_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_10x6_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_10x8_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_10x10_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_12x10_KHR:
+ case GL_COMPRESSED_RGBA_ASTC_12x12_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:
/* generic integer formats */
case GL_RED_INTEGER_EXT:
case GL_GREEN_INTEGER_EXT:
GLboolean
_mesa_is_compressed_format(const struct gl_context *ctx, GLenum format)
{
+ mesa_format m_format = _mesa_glenum_to_compressed_format(format);
+
+ /* Some formats in this switch have an equivalent mesa_format_layout
+ * to the compressed formats in the layout switch below and thus
+ * must be handled first.
+ */
switch (format) {
- case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
- case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
- case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
- case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
- /* Assume that the ANGLE flag will always be set if the EXT flag is set.
- */
- return ctx->Extensions.ANGLE_texture_compression_dxt;
case GL_RGB_S3TC:
case GL_RGB4_S3TC:
case GL_RGBA_S3TC:
case GL_RGBA4_S3TC:
return _mesa_is_desktop_gl(ctx) &&
ctx->Extensions.ANGLE_texture_compression_dxt;
- case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
- return _mesa_is_desktop_gl(ctx)
- && ctx->Extensions.EXT_texture_sRGB
- && ctx->Extensions.EXT_texture_compression_s3tc;
- case GL_COMPRESSED_RGB_FXT1_3DFX:
- case GL_COMPRESSED_RGBA_FXT1_3DFX:
- return _mesa_is_desktop_gl(ctx)
- && ctx->Extensions.TDFX_texture_compression_FXT1;
- case GL_COMPRESSED_RED_RGTC1:
- case GL_COMPRESSED_SIGNED_RED_RGTC1:
- case GL_COMPRESSED_RG_RGTC2:
- case GL_COMPRESSED_SIGNED_RG_RGTC2:
- return _mesa_is_desktop_gl(ctx)
- && ctx->Extensions.ARB_texture_compression_rgtc;
- case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
- case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
- case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
- case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
- return ctx->API == API_OPENGL_COMPAT
- && ctx->Extensions.EXT_texture_compression_latc;
case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
return ctx->API == API_OPENGL_COMPAT
&& ctx->Extensions.ATI_texture_compression_3dc;
- case GL_ETC1_RGB8_OES:
- return _mesa_is_gles(ctx)
- && ctx->Extensions.OES_compressed_ETC1_RGB8_texture;
- case GL_COMPRESSED_RGB8_ETC2:
- case GL_COMPRESSED_SRGB8_ETC2:
- case GL_COMPRESSED_RGBA8_ETC2_EAC:
- case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
- case GL_COMPRESSED_R11_EAC:
- case GL_COMPRESSED_RG11_EAC:
- case GL_COMPRESSED_SIGNED_R11_EAC:
- case GL_COMPRESSED_SIGNED_RG11_EAC:
- case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
- case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
- return _mesa_is_gles3(ctx) || ctx->Extensions.ARB_ES3_compatibility;
- case GL_COMPRESSED_RGBA_BPTC_UNORM:
- case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
- case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
- case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
- return _mesa_is_desktop_gl(ctx) &&
- ctx->Extensions.ARB_texture_compression_bptc;
case GL_PALETTE4_RGB8_OES:
case GL_PALETTE4_RGBA8_OES:
case GL_PALETTE4_R5_G6_B5_OES:
case GL_PALETTE8_RGBA4_OES:
case GL_PALETTE8_RGB5_A1_OES:
return ctx->API == API_OPENGLES;
+ }
+
+ switch (_mesa_get_format_layout(m_format)) {
+ case MESA_FORMAT_LAYOUT_S3TC:
+ if (_mesa_get_format_color_encoding(m_format) == GL_LINEAR) {
+ /* Assume that the ANGLE flag will always be set if the
+ * EXT flag is set.
+ */
+ return ctx->Extensions.ANGLE_texture_compression_dxt;
+ } else {
+ return _mesa_is_desktop_gl(ctx)
+ && ctx->Extensions.EXT_texture_sRGB
+ && ctx->Extensions.EXT_texture_compression_s3tc;
+ }
+ case MESA_FORMAT_LAYOUT_FXT1:
+ return _mesa_is_desktop_gl(ctx)
+ && ctx->Extensions.TDFX_texture_compression_FXT1;
+ case MESA_FORMAT_LAYOUT_RGTC:
+ return _mesa_is_desktop_gl(ctx)
+ && ctx->Extensions.ARB_texture_compression_rgtc;
+ case MESA_FORMAT_LAYOUT_LATC:
+ return ctx->API == API_OPENGL_COMPAT
+ && ctx->Extensions.EXT_texture_compression_latc;
+ case MESA_FORMAT_LAYOUT_ETC1:
+ return _mesa_is_gles(ctx)
+ && ctx->Extensions.OES_compressed_ETC1_RGB8_texture;
+ case MESA_FORMAT_LAYOUT_ETC2:
+ return _mesa_is_gles3(ctx) || ctx->Extensions.ARB_ES3_compatibility;
+ case MESA_FORMAT_LAYOUT_BPTC:
+ return _mesa_is_desktop_gl(ctx) &&
+ ctx->Extensions.ARB_texture_compression_bptc;
+ case MESA_FORMAT_LAYOUT_ASTC:
+ return ctx->Extensions.KHR_texture_compression_astc_ldr;
default:
return GL_FALSE;
}
}
/**
- * Convert various base formats to the cooresponding integer format.
+ * Convert various base formats to the corresponding integer format.
*/
GLenum
_mesa_base_format_to_integer_format(GLenum format)
return GL_INVALID_OPERATION;
case GL_UNSIGNED_INT_24_8:
+ /* Depth buffer OK to read in OpenGL ES (NV_read_depth). */
+ if (ctx->API == API_OPENGLES2 && format == GL_DEPTH_COMPONENT)
+ return GL_NO_ERROR;
+
if (format != GL_DEPTH_STENCIL) {
return GL_INVALID_OPERATION;
}
return type_valid ? GL_NO_ERROR : GL_INVALID_OPERATION;
}
+/**
+ * Return the simple base format for a given internal texture format.
+ * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
+ *
+ * \param ctx GL context.
+ * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
+ *
+ * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
+ * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
+ *
+ * This is the format which is used during texture application (i.e. the
+ * texture format and env mode determine the arithmetic used.
+ */
+GLint
+_mesa_base_tex_format(const struct gl_context *ctx, GLint internalFormat)
+{
+ switch (internalFormat) {
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1;
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ return (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE : -1;
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ return (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE_ALPHA : -1;
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ return (ctx->API != API_OPENGL_CORE) ? GL_INTENSITY : -1;
+ case 3:
+ return (ctx->API != API_OPENGL_CORE) ? GL_RGB : -1;
+ case GL_RGB:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ return GL_RGB;
+ case 4:
+ return (ctx->API != API_OPENGL_CORE) ? GL_RGBA : -1;
+ case GL_RGBA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+
+ /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
+ */
+ if (_mesa_is_gles(ctx)) {
+ switch (internalFormat) {
+ case GL_BGRA:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_ES2_compatibility) {
+ switch (internalFormat) {
+ case GL_RGB565:
+ return GL_RGB;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_depth_texture) {
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ return GL_DEPTH_COMPONENT;
+ case GL_DEPTH_STENCIL:
+ case GL_DEPTH24_STENCIL8:
+ return GL_DEPTH_STENCIL;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_stencil8) {
+ switch (internalFormat) {
+ case GL_STENCIL_INDEX:
+ case GL_STENCIL_INDEX1:
+ case GL_STENCIL_INDEX4:
+ case GL_STENCIL_INDEX8:
+ case GL_STENCIL_INDEX16:
+ return GL_STENCIL_INDEX;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ switch (internalFormat) {
+ case GL_COMPRESSED_ALPHA:
+ return GL_ALPHA;
+ case GL_COMPRESSED_LUMINANCE:
+ return GL_LUMINANCE;
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ return GL_LUMINANCE_ALPHA;
+ case GL_COMPRESSED_INTENSITY:
+ return GL_INTENSITY;
+ case GL_COMPRESSED_RGB:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+
+ if (ctx->Extensions.TDFX_texture_compression_FXT1) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ /* Assume that the ANGLE flag will always be set if the EXT flag is set.
+ */
+ if (ctx->Extensions.ANGLE_texture_compression_dxt) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (_mesa_is_desktop_gl(ctx)
+ && ctx->Extensions.ANGLE_texture_compression_dxt) {
+ switch (internalFormat) {
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ return GL_RGB;
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.MESA_ycbcr_texture) {
+ if (internalFormat == GL_YCBCR_MESA)
+ return GL_YCBCR_MESA;
+ }
+
+ if (ctx->Extensions.ARB_texture_float) {
+ switch (internalFormat) {
+ case GL_ALPHA16F_ARB:
+ case GL_ALPHA32F_ARB:
+ return GL_ALPHA;
+ case GL_RGBA16F_ARB:
+ case GL_RGBA32F_ARB:
+ return GL_RGBA;
+ case GL_RGB16F_ARB:
+ case GL_RGB32F_ARB:
+ return GL_RGB;
+ case GL_INTENSITY16F_ARB:
+ case GL_INTENSITY32F_ARB:
+ return GL_INTENSITY;
+ case GL_LUMINANCE16F_ARB:
+ case GL_LUMINANCE32F_ARB:
+ return GL_LUMINANCE;
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_snorm) {
+ switch (internalFormat) {
+ case GL_RED_SNORM:
+ case GL_R8_SNORM:
+ case GL_R16_SNORM:
+ return GL_RED;
+ case GL_RG_SNORM:
+ case GL_RG8_SNORM:
+ case GL_RG16_SNORM:
+ return GL_RG;
+ case GL_RGB_SNORM:
+ case GL_RGB8_SNORM:
+ case GL_RGB16_SNORM:
+ return GL_RGB;
+ case GL_RGBA_SNORM:
+ case GL_RGBA8_SNORM:
+ case GL_RGBA16_SNORM:
+ return GL_RGBA;
+ case GL_ALPHA_SNORM:
+ case GL_ALPHA8_SNORM:
+ case GL_ALPHA16_SNORM:
+ return GL_ALPHA;
+ case GL_LUMINANCE_SNORM:
+ case GL_LUMINANCE8_SNORM:
+ case GL_LUMINANCE16_SNORM:
+ return GL_LUMINANCE;
+ case GL_LUMINANCE_ALPHA_SNORM:
+ case GL_LUMINANCE8_ALPHA8_SNORM:
+ case GL_LUMINANCE16_ALPHA16_SNORM:
+ return GL_LUMINANCE_ALPHA;
+ case GL_INTENSITY_SNORM:
+ case GL_INTENSITY8_SNORM:
+ case GL_INTENSITY16_SNORM:
+ return GL_INTENSITY;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_sRGB) {
+ switch (internalFormat) {
+ case GL_SRGB_EXT:
+ case GL_SRGB8_EXT:
+ case GL_COMPRESSED_SRGB_EXT:
+ return GL_RGB;
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ return ctx->Extensions.EXT_texture_compression_s3tc ? GL_RGB : -1;
+ case GL_SRGB_ALPHA_EXT:
+ case GL_SRGB8_ALPHA8_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_EXT:
+ return GL_RGBA;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ return ctx->Extensions.EXT_texture_compression_s3tc ? GL_RGBA : -1;
+ case GL_SLUMINANCE_ALPHA_EXT:
+ case GL_SLUMINANCE8_ALPHA8_EXT:
+ case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
+ return GL_LUMINANCE_ALPHA;
+ case GL_SLUMINANCE_EXT:
+ case GL_SLUMINANCE8_EXT:
+ case GL_COMPRESSED_SLUMINANCE_EXT:
+ return GL_LUMINANCE;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Version >= 30 ||
+ ctx->Extensions.EXT_texture_integer) {
+ switch (internalFormat) {
+ case GL_RGBA8UI_EXT:
+ case GL_RGBA16UI_EXT:
+ case GL_RGBA32UI_EXT:
+ case GL_RGBA8I_EXT:
+ case GL_RGBA16I_EXT:
+ case GL_RGBA32I_EXT:
+ case GL_RGB10_A2UI:
+ return GL_RGBA;
+ case GL_RGB8UI_EXT:
+ case GL_RGB16UI_EXT:
+ case GL_RGB32UI_EXT:
+ case GL_RGB8I_EXT:
+ case GL_RGB16I_EXT:
+ case GL_RGB32I_EXT:
+ return GL_RGB;
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_integer) {
+ switch (internalFormat) {
+ case GL_ALPHA8UI_EXT:
+ case GL_ALPHA16UI_EXT:
+ case GL_ALPHA32UI_EXT:
+ case GL_ALPHA8I_EXT:
+ case GL_ALPHA16I_EXT:
+ case GL_ALPHA32I_EXT:
+ return GL_ALPHA;
+ case GL_INTENSITY8UI_EXT:
+ case GL_INTENSITY16UI_EXT:
+ case GL_INTENSITY32UI_EXT:
+ case GL_INTENSITY8I_EXT:
+ case GL_INTENSITY16I_EXT:
+ case GL_INTENSITY32I_EXT:
+ return GL_INTENSITY;
+ case GL_LUMINANCE8UI_EXT:
+ case GL_LUMINANCE16UI_EXT:
+ case GL_LUMINANCE32UI_EXT:
+ case GL_LUMINANCE8I_EXT:
+ case GL_LUMINANCE16I_EXT:
+ case GL_LUMINANCE32I_EXT:
+ return GL_LUMINANCE;
+ case GL_LUMINANCE_ALPHA8UI_EXT:
+ case GL_LUMINANCE_ALPHA16UI_EXT:
+ case GL_LUMINANCE_ALPHA32UI_EXT:
+ case GL_LUMINANCE_ALPHA8I_EXT:
+ case GL_LUMINANCE_ALPHA16I_EXT:
+ case GL_LUMINANCE_ALPHA32I_EXT:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_rg) {
+ switch (internalFormat) {
+ case GL_R16F:
+ case GL_R32F:
+ if (!ctx->Extensions.ARB_texture_float)
+ break;
+ return GL_RED;
+ case GL_R8I:
+ case GL_R8UI:
+ case GL_R16I:
+ case GL_R16UI:
+ case GL_R32I:
+ case GL_R32UI:
+ if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer)
+ break;
+ /* FALLTHROUGH */
+ case GL_R8:
+ case GL_R16:
+ case GL_RED:
+ case GL_COMPRESSED_RED:
+ return GL_RED;
+
+ case GL_RG16F:
+ case GL_RG32F:
+ if (!ctx->Extensions.ARB_texture_float)
+ break;
+ return GL_RG;
+ case GL_RG8I:
+ case GL_RG8UI:
+ case GL_RG16I:
+ case GL_RG16UI:
+ case GL_RG32I:
+ case GL_RG32UI:
+ if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer)
+ break;
+ /* FALLTHROUGH */
+ case GL_RG:
+ case GL_RG8:
+ case GL_RG16:
+ case GL_COMPRESSED_RG:
+ return GL_RG;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_shared_exponent) {
+ switch (internalFormat) {
+ case GL_RGB9_E5_EXT:
+ return GL_RGB;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_packed_float) {
+ switch (internalFormat) {
+ case GL_R11F_G11F_B10F_EXT:
+ return GL_RGB;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_depth_buffer_float) {
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT32F:
+ return GL_DEPTH_COMPONENT;
+ case GL_DEPTH32F_STENCIL8:
+ return GL_DEPTH_STENCIL;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_compression_rgtc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RED_RGTC1:
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ return GL_RED;
+ case GL_COMPRESSED_RG_RGTC2:
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ return GL_RG;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_compression_latc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
+ return GL_LUMINANCE;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ATI_texture_compression_3dc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) {
+ switch (internalFormat) {
+ case GL_ETC1_RGB8_OES:
+ return GL_RGB;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (_mesa_is_gles3(ctx) || ctx->Extensions.ARB_ES3_compatibility) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB8_ETC2:
+ case GL_COMPRESSED_SRGB8_ETC2:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA8_ETC2_EAC:
+ case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
+ case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
+ case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
+ return GL_RGBA;
+ case GL_COMPRESSED_R11_EAC:
+ case GL_COMPRESSED_SIGNED_R11_EAC:
+ return GL_RED;
+ case GL_COMPRESSED_RG11_EAC:
+ case GL_COMPRESSED_SIGNED_RG11_EAC:
+ return GL_RG;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (_mesa_is_desktop_gl(ctx) &&
+ ctx->Extensions.ARB_texture_compression_bptc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGBA_BPTC_UNORM:
+ case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
+ return GL_RGBA;
+ case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
+ case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
+ return GL_RGB;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->API == API_OPENGLES) {
+ switch (internalFormat) {
+ case GL_PALETTE4_RGB8_OES:
+ case GL_PALETTE4_R5_G6_B5_OES:
+ case GL_PALETTE8_RGB8_OES:
+ case GL_PALETTE8_R5_G6_B5_OES:
+ return GL_RGB;
+ case GL_PALETTE4_RGBA8_OES:
+ case GL_PALETTE8_RGB5_A1_OES:
+ case GL_PALETTE4_RGBA4_OES:
+ case GL_PALETTE4_RGB5_A1_OES:
+ case GL_PALETTE8_RGBA8_OES:
+ case GL_PALETTE8_RGBA4_OES:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ return -1; /* error */
+}
/**
* Do error checking of format/type combinations for OpenGL ES 3
uint32_t
_mesa_format_from_format_and_type(GLenum format, GLenum type)
{
- mesa_array_format array_format;
-
bool is_array_format = true;
uint8_t swizzle[4];
bool normalized = false, is_float = false, is_signed = false;
normalized = !_mesa_is_enum_format_integer(format);
num_channels = _mesa_components_in_format(format);
- array_format =
- MESA_ARRAY_FORMAT(type_size, is_signed, is_float,
- normalized, num_channels,
- swizzle[0], swizzle[1], swizzle[2], swizzle[3]);
-
- if (!_mesa_little_endian())
- array_format = _mesa_array_format_flip_channels(array_format);
-
- return array_format;
+ return MESA_ARRAY_FORMAT(type_size, is_signed, is_float,
+ normalized, num_channels,
+ swizzle[0], swizzle[1], swizzle[2], swizzle[3]);
}
/* Otherwise this is not an array format, so return the mesa_format
return MESA_FORMAT_B5G6R5_UNORM;
else if (format == GL_BGR)
return MESA_FORMAT_R5G6B5_UNORM;
+ else if (format == GL_RGB_INTEGER)
+ return MESA_FORMAT_B5G6R5_UINT;
break;
case GL_UNSIGNED_SHORT_5_6_5_REV:
if (format == GL_RGB)
return MESA_FORMAT_R5G6B5_UNORM;
else if (format == GL_BGR)
return MESA_FORMAT_B5G6R5_UNORM;
+ else if (format == GL_RGB_INTEGER)
+ return MESA_FORMAT_R5G6B5_UINT;
break;
case GL_UNSIGNED_SHORT_4_4_4_4:
if (format == GL_RGBA)
return MESA_FORMAT_A4R4G4B4_UNORM;
else if (format == GL_ABGR_EXT)
return MESA_FORMAT_R4G4B4A4_UNORM;
+ else if (format == GL_RGBA_INTEGER)
+ return MESA_FORMAT_A4B4G4R4_UINT;
+ else if (format == GL_BGRA_INTEGER)
+ return MESA_FORMAT_A4R4G4B4_UINT;
break;
case GL_UNSIGNED_SHORT_4_4_4_4_REV:
if (format == GL_RGBA)
return MESA_FORMAT_B4G4R4A4_UNORM;
else if (format == GL_ABGR_EXT)
return MESA_FORMAT_A4B4G4R4_UNORM;
+ else if (format == GL_RGBA_INTEGER)
+ return MESA_FORMAT_R4G4B4A4_UINT;
+ else if (format == GL_BGRA_INTEGER)
+ return MESA_FORMAT_B4G4R4A4_UINT;
break;
case GL_UNSIGNED_SHORT_5_5_5_1:
if (format == GL_RGBA)
return MESA_FORMAT_A1B5G5R5_UNORM;
else if (format == GL_BGRA)
return MESA_FORMAT_A1R5G5B5_UNORM;
+ else if (format == GL_RGBA_INTEGER)
+ return MESA_FORMAT_A1B5G5R5_UINT;
+ else if (format == GL_BGRA_INTEGER)
+ return MESA_FORMAT_A1R5G5B5_UINT;
break;
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
if (format == GL_RGBA)
return MESA_FORMAT_R5G5B5A1_UNORM;
else if (format == GL_BGRA)
return MESA_FORMAT_B5G5R5A1_UNORM;
+ else if (format == GL_RGBA_INTEGER)
+ return MESA_FORMAT_R5G5B5A1_UINT;
+ else if (format == GL_BGRA_INTEGER)
+ return MESA_FORMAT_B5G5R5A1_UINT;
break;
case GL_UNSIGNED_BYTE_3_3_2:
if (format == GL_RGB)
return MESA_FORMAT_B2G3R3_UNORM;
+ else if (format == GL_RGB_INTEGER)
+ return MESA_FORMAT_B2G3R3_UINT;
break;
case GL_UNSIGNED_BYTE_2_3_3_REV:
if (format == GL_RGB)
return MESA_FORMAT_R3G3B2_UNORM;
+ else if (format == GL_RGB_INTEGER)
+ return MESA_FORMAT_R3G3B2_UINT;
break;
case GL_UNSIGNED_INT_5_9_9_9_REV:
if (format == GL_RGB)
return MESA_FORMAT_A8R8G8B8_UNORM;
else if (format == GL_ABGR_EXT)
return MESA_FORMAT_R8G8B8A8_UNORM;
+ else if (format == GL_RGBA_INTEGER)
+ return MESA_FORMAT_A8B8G8R8_UINT;
+ else if (format == GL_BGRA_INTEGER)
+ return MESA_FORMAT_A8R8G8B8_UINT;
break;
case GL_UNSIGNED_INT_8_8_8_8_REV:
if (format == GL_RGBA)
return MESA_FORMAT_B8G8R8A8_UNORM;
else if (format == GL_ABGR_EXT)
return MESA_FORMAT_A8B8G8R8_UNORM;
+ else if (format == GL_RGBA_INTEGER)
+ return MESA_FORMAT_R8G8B8A8_UINT;
+ else if (format == GL_BGRA_INTEGER)
+ return MESA_FORMAT_B8G8R8A8_UINT;
break;
case GL_UNSIGNED_SHORT_8_8_MESA:
if (format == GL_YCBCR_MESA)
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