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lima: add support for half float textures

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Add support for the half float texel type and pixel types.
This enables the OES_texture_half_float extension.

Tested with piglit test oes_texture_float (half float and with linear
filtering) and passes all deqp half float related tests.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8020>
This commit is contained in:
Erico Nunes 2020-11-30 01:39:26 +01:00 • committed by Marge Bot
parent aca67a555c
commit d9dd8288aa
2 changed files with 17 additions and 0 deletions
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14
src/gallium/drivers/lima/lima_format.c
View file

@ -45,6 +45,12 @@
#define LIMA_TEXEL_FORMAT_RGBA_8888 0x16
#define LIMA_TEXEL_FORMAT_RGBX_8888 0x17
#define LIMA_TEXEL_FORMAT_ETC1_RGB8 0x20
#define LIMA_TEXEL_FORMAT_L16_FLOAT 0x22
#define LIMA_TEXEL_FORMAT_A16_FLOAT 0x23
#define LIMA_TEXEL_FORMAT_I16_FLOAT 0x24
#define LIMA_TEXEL_FORMAT_L16A16_FLOAT 0x25
#define LIMA_TEXEL_FORMAT_R16G16B16A16_FLOAT 0x26
#define LIMA_TEXEL_FORMAT_R16G16B16_FLOAT 0x2f
#define LIMA_TEXEL_FORMAT_Z24X8 0x2c
/* This format is only used for depth/stencil reload */
#define LIMA_TEXEL_FORMAT_Z24S8_RLD 0x32
@ -57,6 +63,7 @@
#define LIMA_PIXEL_FORMAT_G8B8 0x05
#define LIMA_PIXEL_FORMAT_Z16 0x0e
#define LIMA_PIXEL_FORMAT_Z24S8 0x0f
#define LIMA_PIXEL_FORMAT_R16G16B16A16_FLOAT 0x26
struct lima_format {
bool present;
@ -109,6 +116,12 @@ static const struct lima_format lima_texel_formats[] = {
LIMA_TEXEL_FORMAT(ETC1_RGB8, ETC1_RGB8, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(R8_UNORM, L8, false, SWIZ(X, 0, 0, 1)),
LIMA_TEXEL_FORMAT(R8G8_UNORM, L8A8, false, SWIZ(X, W, 0, 1)),
LIMA_TEXEL_FORMAT(R16G16B16_FLOAT, R16G16B16_FLOAT, true, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(R16G16B16A16_FLOAT, R16G16B16A16_FLOAT, true, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(L16_FLOAT, L16_FLOAT, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(A16_FLOAT, A16_FLOAT, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(I16_FLOAT, I16_FLOAT, false, SWIZ(X, Y, Z, W)),
LIMA_TEXEL_FORMAT(L16A16_FLOAT, L16A16_FLOAT, false, SWIZ(X, Y, Z, W)),
};
static const struct lima_format lima_pixel_formats[] = {
@ -126,6 +139,7 @@ static const struct lima_format lima_pixel_formats[] = {
//LIMA_PIXEL_FORMAT(R8G8_UNORM, G8B8, true, 0x8888),
LIMA_PIXEL_FORMAT(Z24_UNORM_S8_UINT, Z24S8, false, 0x0000),
LIMA_PIXEL_FORMAT(Z24X8_UNORM, Z24S8, false, 0x0000),
LIMA_PIXEL_FORMAT(R16G16B16A16_FLOAT, R16G16B16A16_FLOAT, true, 0x0000),
};
static const struct lima_format *

3
src/gallium/drivers/lima/lima_screen.c
View file

@ -120,6 +120,9 @@ lima_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
return 1;
case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
return 1;
case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
return 1 << (LIMA_MAX_MIP_LEVELS - 1);
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: