thirdparty/scummvm
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TINYGL: Added stencil buffer implementation

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This commit is contained in:
Paweł Kołodziejski 2021-12-09 21:10:53 +01:00
parent da3c4bacd5
commit 6a591146c8
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GPG key ID: 0BDADC9E74440FF7
22 changed files with 572 additions and 195 deletions
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43
graphics/tinygl/init.cpp
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@ -55,19 +55,18 @@ void GLContext::endSharedState() {
gl_free(s->texture_hash_table);
}
void createContext(int screenW, int screenH, Graphics::PixelFormat pixelFormat, int textureSize, bool dirtyRectsEnable) {
void createContext(int screenW, int screenH, Graphics::PixelFormat pixelFormat, int textureSize, bool enableStencilBuffer, bool dirtyRectsEnable) {
assert(gl_ctx == nullptr);
GLContext *c = new GLContext();
gl_ctx = c;
c->init(screenW, screenH, pixelFormat, textureSize, dirtyRectsEnable);
gl_ctx = new GLContext();
gl_ctx->init(screenW, screenH, pixelFormat, textureSize, enableStencilBuffer, dirtyRectsEnable);
}
void GLContext::init(int screenW, int screenH, Graphics::PixelFormat pixelFormat, int textureSize, bool dirtyRectsEnable) {
void GLContext::init(int screenW, int screenH, Graphics::PixelFormat pixelFormat, int textureSize, bool enableStencilBuffer, bool dirtyRectsEnable) {
GLViewport *v;
_enableDirtyRectangles = dirtyRectsEnable;
fb = new TinyGL::FrameBuffer(screenW, screenH, pixelFormat);
fb = new TinyGL::FrameBuffer(screenW, screenH, pixelFormat, enableStencilBuffer);
renderRect = Common::Rect(0, 0, screenW, screenH);
if ((textureSize & (textureSize - 1)))
@ -169,20 +168,37 @@ void GLContext::init(int screenW, int screenH, Graphics::PixelFormat pixelFormat
// clear
clear_color = Vector4(0.0f, 0.0f, 0.0f, 0.0f);
clear_depth = 1.0f;
clear_stencil = 0;
// selection
render_mode = TGL_RENDER;
select_buffer = NULL;
select_buffer = nullptr;
name_stack_size = 0;
// blending
blending_enabled = false;
source_blending_factor = TGL_ONE;
destination_blending_factor = TGL_ZERO;
// alpha test
alpha_test_enabled = false;
alpha_test_func = TGL_ALWAYS;
alpha_test_ref_val = 0;
// depth test
depth_test = false;
depth_test_enabled = false;
depth_func = TGL_LESS;
depth_write_mask = true;
// stencil
stencil_test_enabled = false;
stencil_test_func = TGL_ALWAYS;
stencil_ref_val = 0;
stencil_mask = 0xff;
stencil_write_mask = 0xff;
stencil_sfail = TGL_KEEP;
stencil_dpfail = TGL_KEEP;
stencil_dppass = TGL_KEEP;
// matrix
matrix_mode = 0;
@ -203,12 +219,6 @@ void GLContext::init(int screenW, int screenH, Graphics::PixelFormat pixelFormat
tglMatrixMode(TGL_MODELVIEW);
tglLoadIdentity();
tglBlendFunc(TGL_SRC_ALPHA, TGL_ONE_MINUS_SRC_ALPHA);
tglAlphaFunc(TGL_ALWAYS, 0.f);
tglDepthFunc(TGL_LESS);
matrix_model_projection_updated = 1;
// opengl 1.1 arrays
@ -223,10 +233,10 @@ void GLContext::init(int screenW, int screenH, Graphics::PixelFormat pixelFormat
shadow_mode = 0;
// clear the resize callback function pointer
gl_resize_viewport = NULL;
gl_resize_viewport = nullptr;
// specular buffer
specbuf_first = NULL;
specbuf_first = nullptr;
specbuf_used_counter = 0;
specbuf_num_buffers = 0;
@ -237,7 +247,6 @@ void GLContext::init(int screenW, int screenH, Graphics::PixelFormat pixelFormat
_currentAllocatorIndex = 0;
_drawCallAllocator[0].initialize(kDrawCallMemory);
_drawCallAllocator[1].initialize(kDrawCallMemory);
_enableDirtyRectangles = true;
_debugRectsEnabled = false;
TinyGL::Internal::tglBlitResetScissorRect();