[Mesa-dev] [Patch v2] Mesa: Add support for GL_OES_texture_*float* extensions.
kalyan kondapally
kondapallykalyancontribute at gmail.com
Thu Nov 27 13:34:29 PST 2014
>>Any driver that can support ARB_texture_float should also be able to
>>support these extensions, so I think you can reuse the ARB_texture_float
>>enable flag here.
As per discussion here,
http://lists.freedesktop.org/archives/mesa-dev/2014-May/059679.html,
drivers should be able to advertise support for some of these OES
extensions. I can look at one of the proposal mentioned in the
discussion, that is to enable support for these extensions in case
driver advertises support for ARB_texture_float.
Br,
Kalyan
On Thu, Nov 27, 2014 at 11:59 AM, Fredrik Höglund <fredrik at kde.org> wrote:
> On Thursday 27 November 2014, Kalyan Kondapally wrote:
>> This patch adds support for following GLES2 Texture Float extensions:
>> 1)GL_OES_texture_float,
>> 2)GL_OES_texture_half_float,
>> 3)GL_OES_texture_float_linear,
>> 4)GL_OES_texture_half_float_linear.
>>
>> Support for these extensions need to be explicitly enabled per driver
>> and this patch enables support for i965 drivers.
>>
>> v2: Indentation fixes. (Brian Paul)
>> Fixed Comments and added some to new private functions.(Brian Paul)
>> Added assert in valid_filter_for_float.(Brian Paul)
>> Renamed Float and HALF_FLOAT_OES as IsFloatOES and IsHalfFloatOES.(Brian Paul)
>> adjust_for_oes_float_texture to return GLenum. (Brain Paul)
>> Use RGB_32F internal floating point format for RGB base format.
>>
>> Signed-off-by: Kevin Rogovin <kevin.rogovin at intel.com>
>> Signed-off-by: Kalyan Kondapally <kalyan.kondapally at intel.com>
>> ---
>> src/mesa/drivers/dri/i965/intel_extensions.c | 6 +++
>> src/mesa/main/extensions.c | 4 ++
>> src/mesa/main/glformats.c | 46 +++++++++++++++++--
>> src/mesa/main/glformats.h | 3 +-
>> src/mesa/main/mtypes.h | 6 +++
>> src/mesa/main/pack.c | 16 +++++++
>> src/mesa/main/teximage.c | 68 +++++++++++++++++++++++++++-
>> src/mesa/main/texobj.c | 53 ++++++++++++++++++++++
>> 8 files changed, 196 insertions(+), 6 deletions(-)
>>
>> diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c
>> index bbbb76f..e95eaef 100644
>> --- a/src/mesa/drivers/dri/i965/intel_extensions.c
>> +++ b/src/mesa/drivers/dri/i965/intel_extensions.c
>> @@ -245,6 +245,12 @@ intelInitExtensions(struct gl_context *ctx)
>> ctx->Extensions.OES_standard_derivatives = true;
>> ctx->Extensions.OES_EGL_image_external = true;
>>
>> + bool enable_opengles2_extensions = ctx->API == API_OPENGLES2;
>> + ctx->Extensions.OES_texture_float = enable_opengles2_extensions;
>> + ctx->Extensions.OES_texture_half_float = enable_opengles2_extensions;
>> + ctx->Extensions.OES_texture_float_linear = enable_opengles2_extensions;
>> + ctx->Extensions.OES_texture_half_float_linear = enable_opengles2_extensions;
>> +
>> if (brw->gen >= 6)
>> ctx->Const.GLSLVersion = 330;
>> else
>> diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
>> index 0df04c2..6833fcf 100644
>> --- a/src/mesa/main/extensions.c
>> +++ b/src/mesa/main/extensions.c
>> @@ -314,6 +314,10 @@ static const struct extension extension_table[] = {
>> { "GL_OES_texture_3D", o(EXT_texture3D), ES2, 2005 },
>> { "GL_OES_texture_cube_map", o(ARB_texture_cube_map), ES1, 2007 },
>> { "GL_OES_texture_env_crossbar", o(ARB_texture_env_crossbar), ES1, 2005 },
>> + { "GL_OES_texture_float", o(OES_texture_float), ES2, 2005 },
>> + { "GL_OES_texture_float_linear", o(OES_texture_float_linear), ES2, 2005 },
>> + { "GL_OES_texture_half_float", o(OES_texture_half_float), ES2, 2005 },
>> + { "GL_OES_texture_half_float_linear", o(OES_texture_half_float_linear), ES2, 2005 },
>
> Any driver that can support ARB_texture_float should also be able to
> support these extensions, so I think you can reuse the ARB_texture_float
> enable flag here.
>
>> { "GL_OES_texture_mirrored_repeat", o(dummy_true), ES1, 2005 },
>> { "GL_OES_texture_npot", o(ARB_texture_non_power_of_two), ES1 | ES2, 2005 },
>> { "GL_OES_vertex_array_object", o(dummy_true), ES1 | ES2, 2010 },
>> diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c
>> index 00478f9..c2e6c37 100644
>> --- a/src/mesa/main/glformats.c
>> +++ b/src/mesa/main/glformats.c
>> @@ -93,6 +93,7 @@ _mesa_sizeof_type(GLenum type)
>> case GL_DOUBLE:
>> return sizeof(GLdouble);
>> case GL_HALF_FLOAT_ARB:
>> + case GL_HALF_FLOAT_OES:
>> return sizeof(GLhalfARB);
>> case GL_FIXED:
>> return sizeof(GLfixed);
>> @@ -125,6 +126,7 @@ _mesa_sizeof_packed_type(GLenum type)
>> case GL_INT:
>> return sizeof(GLint);
>> case GL_HALF_FLOAT_ARB:
>> + case GL_HALF_FLOAT_OES:
>> return sizeof(GLhalfARB);
>> case GL_FLOAT:
>> return sizeof(GLfloat);
>> @@ -241,6 +243,7 @@ _mesa_bytes_per_pixel(GLenum format, GLenum type)
>> case GL_FLOAT:
>> return comps * sizeof(GLfloat);
>> case GL_HALF_FLOAT_ARB:
>> + case GL_HALF_FLOAT_OES:
>> return comps * sizeof(GLhalfARB);
>> case GL_UNSIGNED_BYTE_3_3_2:
>> case GL_UNSIGNED_BYTE_2_3_3_REV:
>> @@ -1448,6 +1451,18 @@ _mesa_error_check_format_and_type(const struct gl_context *ctx,
>> }
>> return GL_NO_ERROR;
>>
>> + case GL_HALF_FLOAT_OES:
>> + switch (format) {
>> + case GL_RGBA:
>> + case GL_RGB:
>> + case GL_LUMINANCE_ALPHA:
>> + case GL_LUMINANCE:
>> + case GL_ALPHA:
>> + return GL_NO_ERROR;
>> + default:
>> + return GL_INVALID_OPERATION;
>> + }
>> +
>> default:
>> ; /* fall-through */
>> }
>> @@ -1782,7 +1797,8 @@ _mesa_es_error_check_format_and_type(GLenum format, GLenum type,
>> * \return error code, or GL_NO_ERROR.
>> */
>> GLenum
>> -_mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
>> +_mesa_es3_error_check_format_and_type(const struct gl_context *ctx,
>> + GLenum format, GLenum type,
>> GLenum internalFormat)
>> {
>> switch (format) {
>> @@ -1847,11 +1863,17 @@ _mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
>> case GL_RGBA16F:
>> case GL_RGBA32F:
>> break;
>> + case GL_RGBA:
>> + if (ctx->Extensions.OES_texture_float && internalFormat == format)
>> + break;
>> default:
>> return GL_INVALID_OPERATION;
>> }
>> break;
>>
>> + case GL_HALF_FLOAT_OES:
>> + if (ctx->Extensions.OES_texture_half_float && internalFormat == format)
>> + break;
>> default:
>> return GL_INVALID_OPERATION;
>> }
>> @@ -1956,11 +1978,19 @@ _mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
>> case GL_R11F_G11F_B10F:
>> case GL_RGB9_E5:
>> break;
>> + case GL_RGB:
>> + if (ctx->Extensions.OES_texture_float && internalFormat == format)
>> + break;
>> default:
>> return GL_INVALID_OPERATION;
>> }
>> break;
>>
>> + case GL_HALF_FLOAT_OES:
>> + if (!ctx->Extensions.OES_texture_half_float || internalFormat != format)
>> + return GL_INVALID_OPERATION;
>> + break;
>> +
>> case GL_UNSIGNED_INT_2_10_10_10_REV:
>> switch (internalFormat) {
>> case GL_RGB: /* GL_EXT_texture_type_2_10_10_10_REV */
>> @@ -2200,9 +2230,17 @@ _mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
>> case GL_ALPHA:
>> case GL_LUMINANCE:
>> case GL_LUMINANCE_ALPHA:
>> - if (type != GL_UNSIGNED_BYTE || format != internalFormat)
>> - return GL_INVALID_OPERATION;
>> - break;
>> + switch (type) {
>> + case GL_FLOAT:
>> + if (ctx->Extensions.OES_texture_float && internalFormat == format)
>> + break;
>> + case GL_HALF_FLOAT_OES:
>> + if (ctx->Extensions.OES_texture_half_float && internalFormat == format)
>> + break;
>> + default:
>> + if (type != GL_UNSIGNED_BYTE || format != internalFormat)
>> + return GL_INVALID_OPERATION;
>> + }
>> }
>>
>> return GL_NO_ERROR;
>> diff --git a/src/mesa/main/glformats.h b/src/mesa/main/glformats.h
>> index 7b03215..9b1674e 100644
>> --- a/src/mesa/main/glformats.h
>> +++ b/src/mesa/main/glformats.h
>> @@ -122,7 +122,8 @@ _mesa_es_error_check_format_and_type(GLenum format, GLenum type,
>> unsigned dimensions);
>>
>> extern GLenum
>> -_mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
>> +_mesa_es3_error_check_format_and_type(const struct gl_context *ctx,
>> + GLenum format, GLenum type,
>> GLenum internalFormat);
>>
>>
>> diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
>> index 7389baa..4e44b6e 100644
>> --- a/src/mesa/main/mtypes.h
>> +++ b/src/mesa/main/mtypes.h
>> @@ -1220,6 +1220,8 @@ struct gl_texture_object
>> GLboolean Purgeable; /**< Is the buffer purgeable under memory
>> pressure? */
>> GLboolean Immutable; /**< GL_ARB_texture_storage */
>> + GLboolean IsFloatOES; /**< GL_OES_float_texture */
>> + GLboolean IsHalfFloatOES; /**< GL_OES_half_float_texture */
>>
>> GLuint MinLevel; /**< GL_ARB_texture_view */
>> GLuint MinLayer; /**< GL_ARB_texture_view */
>> @@ -3842,6 +3844,10 @@ struct gl_extensions
>> GLboolean OES_draw_texture;
>> GLboolean OES_depth_texture_cube_map;
>> GLboolean OES_EGL_image_external;
>> + GLboolean OES_texture_float;
>> + GLboolean OES_texture_half_float;
>> + GLboolean OES_texture_float_linear;
>> + GLboolean OES_texture_half_float_linear;
>> GLboolean OES_compressed_ETC1_RGB8_texture;
>> GLboolean extension_sentinel;
>> /** The extension string */
>> diff --git a/src/mesa/main/pack.c b/src/mesa/main/pack.c
>> index 649a74c..daafb1e 100644
>> --- a/src/mesa/main/pack.c
>> +++ b/src/mesa/main/pack.c
>> @@ -2301,6 +2301,7 @@ _mesa_pack_rgba_span_float(struct gl_context *ctx, GLuint n, GLfloat rgba[][4],
>> }
>> break;
>> case GL_HALF_FLOAT_ARB:
>> + case GL_HALF_FLOAT_OES:
>> {
>> GLhalfARB *dst = (GLhalfARB *) dstAddr;
>> switch (dstFormat) {
>> @@ -2724,6 +2725,7 @@ extract_uint_indexes(GLuint n, GLuint indexes[],
>> srcType == GL_INT ||
>> srcType == GL_UNSIGNED_INT_24_8_EXT ||
>> srcType == GL_HALF_FLOAT_ARB ||
>> + srcType == GL_HALF_FLOAT_OES ||
>> srcType == GL_FLOAT ||
>> srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
>>
>> @@ -2863,6 +2865,7 @@ extract_uint_indexes(GLuint n, GLuint indexes[],
>> }
>> break;
>> case GL_HALF_FLOAT_ARB:
>> + case GL_HALF_FLOAT_OES:
>> {
>> GLuint i;
>> const GLhalfARB *s = (const GLhalfARB *) src;
>> @@ -3102,6 +3105,7 @@ extract_float_rgba(GLuint n, GLfloat rgba[][4],
>> srcType == GL_UNSIGNED_INT ||
>> srcType == GL_INT ||
>> srcType == GL_HALF_FLOAT_ARB ||
>> + srcType == GL_HALF_FLOAT_OES ||
>> srcType == GL_FLOAT ||
>> srcType == GL_UNSIGNED_BYTE_3_3_2 ||
>> srcType == GL_UNSIGNED_BYTE_2_3_3_REV ||
>> @@ -3219,6 +3223,7 @@ extract_float_rgba(GLuint n, GLfloat rgba[][4],
>> PROCESS(aSrc, ACOMP, 1.0F, 1.0F, GLfloat, (GLfloat));
>> break;
>> case GL_HALF_FLOAT_ARB:
>> + case GL_HALF_FLOAT_OES:
>> PROCESS(rSrc, RCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float);
>> PROCESS(gSrc, GCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float);
>> PROCESS(bSrc, BCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float);
>> @@ -3717,6 +3722,7 @@ extract_uint_rgba(GLuint n, GLuint rgba[][4],
>> srcType == GL_UNSIGNED_INT ||
>> srcType == GL_INT ||
>> srcType == GL_HALF_FLOAT_ARB ||
>> + srcType == GL_HALF_FLOAT_OES ||
>> srcType == GL_FLOAT ||
>> srcType == GL_UNSIGNED_BYTE_3_3_2 ||
>> srcType == GL_UNSIGNED_BYTE_2_3_3_REV ||
>> @@ -3814,6 +3820,7 @@ extract_uint_rgba(GLuint n, GLuint rgba[][4],
>> PROCESS(aSrc, ACOMP, 1, GLfloat, clamp_float_to_uint);
>> break;
>> case GL_HALF_FLOAT_ARB:
>> + case GL_HALF_FLOAT_OES:
>> PROCESS(rSrc, RCOMP, 0, GLhalfARB, clamp_half_to_uint);
>> PROCESS(gSrc, GCOMP, 0, GLhalfARB, clamp_half_to_uint);
>> PROCESS(bSrc, BCOMP, 0, GLhalfARB, clamp_half_to_uint);
>> @@ -4218,6 +4225,7 @@ _mesa_unpack_color_span_ubyte(struct gl_context *ctx,
>> srcType == GL_UNSIGNED_INT ||
>> srcType == GL_INT ||
>> srcType == GL_HALF_FLOAT_ARB ||
>> + srcType == GL_HALF_FLOAT_OES ||
>> srcType == GL_FLOAT ||
>> srcType == GL_UNSIGNED_BYTE_3_3_2 ||
>> srcType == GL_UNSIGNED_BYTE_2_3_3_REV ||
>> @@ -4471,6 +4479,7 @@ _mesa_unpack_color_span_float( struct gl_context *ctx,
>> srcType == GL_UNSIGNED_INT ||
>> srcType == GL_INT ||
>> srcType == GL_HALF_FLOAT_ARB ||
>> + srcType == GL_HALF_FLOAT_OES ||
>> srcType == GL_FLOAT ||
>> srcType == GL_UNSIGNED_BYTE_3_3_2 ||
>> srcType == GL_UNSIGNED_BYTE_2_3_3_REV ||
>> @@ -4675,6 +4684,7 @@ _mesa_unpack_color_span_uint(struct gl_context *ctx,
>> srcType == GL_UNSIGNED_INT ||
>> srcType == GL_INT ||
>> srcType == GL_HALF_FLOAT_ARB ||
>> + srcType == GL_HALF_FLOAT_OES ||
>> srcType == GL_FLOAT ||
>> srcType == GL_UNSIGNED_BYTE_3_3_2 ||
>> srcType == GL_UNSIGNED_BYTE_2_3_3_REV ||
>> @@ -4803,6 +4813,7 @@ _mesa_unpack_index_span( struct gl_context *ctx, GLuint n,
>> srcType == GL_UNSIGNED_INT ||
>> srcType == GL_INT ||
>> srcType == GL_HALF_FLOAT_ARB ||
>> + srcType == GL_HALF_FLOAT_OES ||
>> srcType == GL_FLOAT);
>>
>> ASSERT(dstType == GL_UNSIGNED_BYTE ||
>> @@ -4974,6 +4985,7 @@ _mesa_pack_index_span( struct gl_context *ctx, GLuint n,
>> }
>> break;
>> case GL_HALF_FLOAT_ARB:
>> + case GL_HALF_FLOAT_OES:
>> {
>> GLhalfARB *dst = (GLhalfARB *) dest;
>> GLuint i;
>> @@ -5023,6 +5035,7 @@ _mesa_unpack_stencil_span( struct gl_context *ctx, GLuint n,
>> srcType == GL_INT ||
>> srcType == GL_UNSIGNED_INT_24_8_EXT ||
>> srcType == GL_HALF_FLOAT_ARB ||
>> + srcType == GL_HALF_FLOAT_OES ||
>> srcType == GL_FLOAT ||
>> srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
>>
>> @@ -5213,6 +5226,7 @@ _mesa_pack_stencil_span( struct gl_context *ctx, GLuint n,
>> }
>> break;
>> case GL_HALF_FLOAT_ARB:
>> + case GL_HALF_FLOAT_OES:
>> {
>> GLhalfARB *dst = (GLhalfARB *) dest;
>> GLuint i;
>> @@ -5430,6 +5444,7 @@ _mesa_unpack_depth_span( struct gl_context *ctx, GLuint n,
>> needClamp = GL_TRUE;
>> break;
>> case GL_HALF_FLOAT_ARB:
>> + case GL_HALF_FLOAT_OES:
>> {
>> GLuint i;
>> const GLhalfARB *src = (const GLhalfARB *) source;
>> @@ -5619,6 +5634,7 @@ _mesa_pack_depth_span( struct gl_context *ctx, GLuint n, GLvoid *dest,
>> }
>> break;
>> case GL_HALF_FLOAT_ARB:
>> + case GL_HALF_FLOAT_OES:
>> {
>> GLhalfARB *dst = (GLhalfARB *) dest;
>> GLuint i;
>> diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
>> index 4f4bb11..b24c593 100644
>> --- a/src/mesa/main/teximage.c
>> +++ b/src/mesa/main/teximage.c
>> @@ -62,7 +62,60 @@
>> */
>> #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
>>
>> +/**
>> + * Returns a corresponding internal floating point format for a given base
>> + * format as specifed by OES_texture_float. In case of Float, the internal
>> + * format needs to be a 32 bit component and in case of HALF_FLOAT it needs to
>> + * be a 16 bit component.
>> + *
>> + * For example, given base format GL_ALPHA, type Float return GL_ALPHA32F_ARB.
>> + */
>> +static GLenum
>> +adjust_for_oes_float_texture(GLenum format, GLenum type)
>> +{
>> + switch (type) {
>> + case GL_FLOAT: {
>> + switch (format) {
>> + case GL_RGBA:
>> + return GL_RGBA32F_ARB;
>> + case GL_RGB:
>> + return GL_RGB32F_ARB;
>> + case GL_ALPHA:
>> + return GL_ALPHA32F_ARB;
>> + case GL_LUMINANCE:
>> + return GL_LUMINANCE32F_ARB;
>> + case GL_LUMINANCE_ALPHA:
>> + return GL_LUMINANCE_ALPHA32F_ARB;
>> + default:
>> + break;
>> + }
>> + break;
>> + }
>>
>> + case GL_HALF_FLOAT_OES: {
>> + switch (format) {
>> + case GL_RGBA:
>> + return GL_RGBA16F_ARB;
>> + case GL_RGB:
>> + return GL_RGB16F_ARB;
>> + case GL_ALPHA:
>> + return GL_ALPHA16F_ARB;
>> + case GL_LUMINANCE:
>> + return GL_LUMINANCE16F_ARB;
>> + case GL_LUMINANCE_ALPHA:
>> + return GL_LUMINANCE_ALPHA16F_ARB;
>> + default:
>> + break;
>> + }
>> + break;
>> + }
>> +
>> + default:
>> + break;
>> + }
>> +
>> + return format;
>> +}
>>
>> /**
>> * Return the simple base format for a given internal texture format.
>> @@ -2137,7 +2190,7 @@ texture_error_check( struct gl_context *ctx,
>>
>> if (_mesa_is_gles(ctx)) {
>> if (_mesa_is_gles3(ctx)) {
>> - err = _mesa_es3_error_check_format_and_type(format, type,
>> + err = _mesa_es3_error_check_format_and_type(ctx, format, type,
>> internalFormat);
>> } else {
>> if (format != internalFormat) {
>> @@ -3239,6 +3292,19 @@ teximage(struct gl_context *ctx, GLboolean compressed, GLuint dims,
>> texFormat = _mesa_glenum_to_compressed_format(internalFormat);
>> }
>> else {
>> + /* In case of HALF_FLOAT_OES or FLOAT_OES, find corresponding sized
>> + * internal floating point format for the given base format.
>> + */
>> + if (_mesa_is_gles(ctx) && format == internalFormat) {
>> + if (type == GL_HALF_FLOAT_OES && ctx->Extensions.OES_texture_half_float)
>> + texObj->IsHalfFloatOES = GL_TRUE;
>> + else if (type == GL_FLOAT && ctx->Extensions.OES_texture_float)
>> + texObj->IsFloatOES = GL_TRUE;
>> +
>> + if (texObj->IsHalfFloatOES || texObj->IsFloatOES)
>> + internalFormat = adjust_for_oes_float_texture(format, type);
>> + }
>> +
>> texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
>> internalFormat, format, type);
>> }
>> diff --git a/src/mesa/main/texobj.c b/src/mesa/main/texobj.c
>> index 923cf60..4d0099a 100644
>> --- a/src/mesa/main/texobj.c
>> +++ b/src/mesa/main/texobj.c
>> @@ -49,6 +49,51 @@
>> /** \name Internal functions */
>> /*@{*/
>>
>> +/**
>> + * This function checks for all valid combinations of Min and Mag filters for
>> + * Float types, when extensions like OES_texture_float and
>> + * OES_texture_float_linear are supported . OES_texture_float mentions support
>> + * for NEAREST, NEAREST_MIPMAP_NEAREST magnification and minification filters.
>> + * Mag filters like LINEAR and min filters like NEAREST_MIPMAP_LINEAR,
>> + * LINEAR_MIPMAP_NEAREST and LINEAR_MIPMAP_LINEAR are only valid in case
>> + * OES_texture_float_linear is supported.
>> + *
>> + * Returns true in case the filter is valid for given Float type else false.
>> + */
>> +static bool valid_filter_for_float(const struct gl_context *ctx,
>> + const struct gl_texture_object *obj) {
>> + ASSERT(_mesa_is_gles(ctx));
>> + switch (obj->Sampler.MagFilter) {
>> + case GL_LINEAR:
>> + if (obj->IsHalfFloatOES && !ctx->Extensions.OES_texture_half_float_linear)
>> + return false;
>> + else if (obj->IsFloatOES && !ctx->Extensions.OES_texture_float_linear)
>> + return false;
>> + case GL_NEAREST:
>> + case GL_NEAREST_MIPMAP_NEAREST:
>> + break;
>> + default:
>> + return false;
>> + }
>> +
>> + switch (obj->Sampler.MinFilter) {
>> + case GL_NEAREST:
>> + case GL_NEAREST_MIPMAP_NEAREST:
>> + return true;
>> + case GL_LINEAR:
>> + case GL_NEAREST_MIPMAP_LINEAR:
>> + case GL_LINEAR_MIPMAP_NEAREST:
>> + case GL_LINEAR_MIPMAP_LINEAR:
>> + if (obj->IsHalfFloatOES && ctx->Extensions.OES_texture_half_float_linear)
>> + return true;
>> + else if (obj->IsFloatOES && ctx->Extensions.OES_texture_float_linear)
>> + return true;
>> + default:
>> + return false;
>> + }
>> +
>> + return false;
>> +}
>>
>> /**
>> * Return the gl_texture_object for a given ID.
>> @@ -542,6 +587,14 @@ _mesa_test_texobj_completeness( const struct gl_context *ctx,
>> t->_IsIntegerFormat = datatype == GL_INT || datatype == GL_UNSIGNED_INT;
>> }
>>
>> + /* Check if the texture type is Float or HalfFloatOES and ensure Min and Mag
>> + * filters are supported in this case.
>> + */
>> + if ((t->IsFloatOES || t->IsHalfFloatOES) && !valid_filter_for_float(ctx, t)) {
>> + incomplete(t, BASE, "Filter is not supported with Float types.");
>> + return;
>> + }
>> +
>> /* Compute _MaxLevel (the maximum mipmap level we'll sample from given the
>> * mipmap image sizes and GL_TEXTURE_MAX_LEVEL state).
>> */
>>
>
More information about the mesa-dev
mailing list