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LibGL+LibSoftGPU: Implement fixed pipeline support for GL_COMBINE

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`GL_COMBINE` is basically a fixed function calculator to perform simple
arithmetics on configurable fragment sources. This patch implements a
number of texture env parameters with support for the RGBA internal
format.
This commit is contained in:
Jelle Raaijmakers 2022-09-04 16:53:23 +02:00 • committed by Linus Groh
parent 494024b70e
commit 1d36bfdac1
10 changed files with 461 additions and 58 deletions
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39
Userland/Libraries/LibGL/GL/gl.h
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@ -144,6 +144,7 @@ extern "C" {
#define GL_MAP2_VERTEX_4 0x0DB8
#define GL_NORMAL_ARRAY 0x8075
#define GL_NORMAL_ARRAY_TYPE 0x807E
#define GL_MAX_TEXTURE_LOD_BIAS 0x84FD
// Blend factors
#define GL_ZERO 0
@ -485,6 +486,8 @@ extern "C" {
#define GL_Q 0x2003
// Texture Environment and Parameters
#define GL_ADD 0x0104
#define GL_ALPHA_SCALE 0x0D1C
#define GL_MODULATE 0x2100
#define GL_TEXTURE_ENV_MODE 0x2200
#define GL_DECAL 0x2101
@ -501,9 +504,41 @@ extern "C" {
#define GL_TEXTURE_WRAP_T 0x2803
#define GL_CLAMP 0x2900
#define GL_REPEAT 0x2901
#define GL_MIRRORED_REPEAT 0x8370
#define GL_CLAMP_TO_BORDER 0x812D
#define GL_CLAMP_TO_EDGE 0x812F
#define GL_MIRRORED_REPEAT 0x8370
#define GL_SUBTRACT 0x84E7
#define GL_TEXTURE_FILTER_CONTROL 0x8500
#define GL_TEXTURE_LOD_BIAS 0x8501
#define GL_COMBINE 0x8570
#define GL_COMBINE_RGB 0x8571
#define GL_COMBINE_ALPHA 0x8572
#define GL_RGB_SCALE 0x8573
#define GL_ADD_SIGNED 0x8574
#define GL_INTERPOLATE 0x8575
#define GL_CONSTANT 0x8576
#define GL_PRIMARY_COLOR 0x8577
#define GL_PREVIOUS 0x8578
#define GL_SRC0_RGB 0x8580
#define GL_SOURCE0_RGB 0x8580
#define GL_SRC1_RGB 0x8581
#define GL_SOURCE1_RGB 0x8581
#define GL_SRC2_RGB 0x8582
#define GL_SOURCE2_RGB 0x8582
#define GL_SRC0_ALPHA 0x8588
#define GL_SOURCE0_ALPHA 0x8588
#define GL_SRC1_ALPHA 0x8589
#define GL_SOURCE1_ALPHA 0x8589
#define GL_SRC2_ALPHA 0x858A
#define GL_SOURCE2_ALPHA 0x858A
#define GL_OPERAND0_RGB 0x8590
#define GL_OPERAND1_RGB 0x8591
#define GL_OPERAND2_RGB 0x8592
#define GL_OPERAND0_ALPHA 0x8598
#define GL_OPERAND1_ALPHA 0x8599
#define GL_OPERAND2_ALPHA 0x859A
#define GL_DOT3_RGB 0x86AE
#define GL_DOT3_RGBA 0x86AF
// Texture gen modes
#define GL_EYE_LINEAR 0x2400
@ -538,8 +573,6 @@ extern "C" {
#define GL_MODELVIEW_MATRIX 0x0BA6
#define GL_PROJECTION_MATRIX 0x0BA7
#define GL_ADD 0x0104
// User clipping planes
#define GL_MAX_CLIP_PLANES 0x0D32
#define GL_CLIP_PLANE0 0x3000