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ATC and ASTC support (#1410)

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* ATC & ASTC support

- Add update format enum for bimg additions
- renderer_gl ATC and ATSC support
- renderer_mtl ASTC support
- renderer_vk ASTC support
- updates to other backends for new enums
- Support emulated ATC

* cleanup

* Add texture_compression test files for ATC/ASTC formats

* Update 'update' example for ATC formats

- Generalise tile code a little
- Add ATC variants
- Ignoring ASTC for now as not emulated -- should we add empty
  checkerboard emulate though?
This commit is contained in:
Andrew Willmott
2018-06-11 17:23:41 +01:00
committed by Branimir Karadžić
parent a267922971
commit acd99728b7
17 changed files with 124 additions and 20 deletions
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41
examples/08-update/update.cpp
View File

@@ -171,15 +171,19 @@ public:
// Create vertex stream declaration.
PosTexcoordVertex::init();
m_textures[0] = loadTexture("textures/texture_compression_bc1.ktx", BGFX_TEXTURE_U_CLAMP|BGFX_TEXTURE_V_CLAMP);
m_textures[1] = loadTexture("textures/texture_compression_bc2.ktx", BGFX_TEXTURE_U_CLAMP);
m_textures[2] = loadTexture("textures/texture_compression_bc3.ktx", BGFX_TEXTURE_V_CLAMP);
m_textures[3] = loadTexture("textures/texture_compression_etc1.ktx", BGFX_TEXTURE_U_BORDER|BGFX_TEXTURE_V_BORDER|BGFX_TEXTURE_BORDER_COLOR(1) );
m_textures[4] = loadTexture("textures/texture_compression_etc2.ktx");
m_textures[5] = loadTexture("textures/texture_compression_ptc12.pvr");
m_textures[6] = loadTexture("textures/texture_compression_ptc14.pvr");
m_textures[7] = loadTexture("textures/texture_compression_ptc22.pvr");
m_textures[8] = loadTexture("textures/texture_compression_ptc24.pvr");
m_textures[ 0] = loadTexture("textures/texture_compression_bc1.ktx", BGFX_TEXTURE_U_CLAMP | BGFX_TEXTURE_V_CLAMP);
m_textures[ 1] = loadTexture("textures/texture_compression_bc2.ktx", BGFX_TEXTURE_U_CLAMP);
m_textures[ 2] = loadTexture("textures/texture_compression_bc3.ktx", BGFX_TEXTURE_V_CLAMP);
m_textures[ 3] = loadTexture("textures/texture_compression_etc1.ktx", BGFX_TEXTURE_U_BORDER | BGFX_TEXTURE_V_BORDER | BGFX_TEXTURE_BORDER_COLOR(1));
m_textures[ 4] = loadTexture("textures/texture_compression_etc2.ktx");
m_textures[ 5] = loadTexture("textures/texture_compression_ptc12.pvr");
m_textures[ 6] = loadTexture("textures/texture_compression_ptc14.pvr");
m_textures[ 7] = loadTexture("textures/texture_compression_ptc22.pvr");
m_textures[ 8] = loadTexture("textures/texture_compression_ptc24.pvr");
m_textures[ 9] = loadTexture("textures/texture_compression_atc.dds");
m_textures[10] = loadTexture("textures/texture_compression_atci.dds");
m_textures[11] = loadTexture("textures/texture_compression_atce.dds");
BX_STATIC_ASSERT(12 == BX_COUNTOF(m_textures));
const bgfx::Caps* caps = bgfx::getCaps();
m_texture3DSupported = !!(caps->supported & BGFX_CAPS_TEXTURE_3D);
@@ -519,13 +523,16 @@ public:
// Set view and projection matrix for view 1.
const float aspectRatio = float(m_height)/float(m_width);
const float size = 11.0f;
const float margin = 0.7f;
const float sizeX = 0.5f * BX_COUNTOF(m_textures) * 2.1f + margin;
const float sizeY = sizeX * aspectRatio;
const bgfx::Caps* caps = bgfx::getCaps();
bx::mtxOrtho(proj, -size, size, size*aspectRatio, -size*aspectRatio, 0.0f, 1000.0f, 0.0f, caps->homogeneousDepth);
bx::mtxOrtho(proj, -sizeX, sizeX, sizeY, -sizeY, 0.0f, 1000.0f, 0.0f, caps->homogeneousDepth);
bgfx::setViewTransform(1, NULL, proj);
float mtx[16];
bx::mtxTranslate(mtx, -size+2.0f - BX_COUNTOF(m_textures)*0.1f*0.5f, 1.9f, 0.0f);
bx::mtxTranslate(mtx, -sizeX + margin + 1.0f, 1.9f, 0.0f);
// Set model matrix for rendering.
bgfx::setTransform(mtx);
@@ -543,11 +550,11 @@ public:
// Submit primitive for rendering to view 1.
bgfx::submit(1, m_programCmp);
const float xpos = -size+2.0f - BX_COUNTOF(m_textures)*0.1f*0.5f;
const float xpos = -sizeX + margin + 1.0f;
for (uint32_t ii = 0; ii < BX_COUNTOF(m_textures); ++ii)
{
bx::mtxTranslate(mtx, xpos + ii*2.1f, size-6.5f, 0.0f);
bx::mtxTranslate(mtx, xpos + ii*2.1f, sizeY - margin - 1.0f, 0.0f);
// Set model matrix for rendering.
bgfx::setTransform(mtx);
@@ -568,7 +575,7 @@ public:
for (uint32_t ii = 0; ii < m_numTextures3d; ++ii)
{
bx::mtxTranslate(mtx, xpos + (ii+3)*2.1f, -size+6.5f, 0.0f);
bx::mtxTranslate(mtx, xpos + (ii+(BX_COUNTOF(m_textures) - m_numTextures3d)*0.5f)*2.1f, -sizeY + margin + 1.0f, 0.0f);
// Set model matrix for rendering.
bgfx::setTransform(mtx);
@@ -589,7 +596,7 @@ public:
for (uint32_t ii = 0; ii < 4; ++ii)
{
bx::mtxTranslate(mtx, xpos + (size-2.0f)*2.1f, -size+6.5f + ii*2.1f, 0.0f);
bx::mtxTranslate(mtx, sizeX - margin - 1.0f, -sizeY + margin + 1.0f + ii*2.1f, 0.0f);
// Set model matrix for rendering.
bgfx::setTransform(mtx);
@@ -643,7 +650,7 @@ public:
uint8_t m_gg;
uint8_t m_bb;
bgfx::TextureHandle m_textures[9];
bgfx::TextureHandle m_textures[12];
bgfx::TextureHandle m_textures3d[3];
bgfx::TextureHandle m_texture2d;
bgfx::TextureHandle m_textureCube[3];