thirdparty/scummvm
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GRAPHICS: Moved shader code where it's actually used

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This commit is contained in:
Paweł Kołodziejski 2022-01-10 03:34:48 +01:00
parent 4e865e945e
commit 4f0e5ed3c0
9 changed files with 134 additions and 210 deletions
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34
backends/graphics3d/opengl/surfacerenderer.cpp
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@ -172,6 +172,38 @@ void FixedSurfaceRenderer::restorePreviousState() {
#if defined(USE_OPENGL_SHADERS)
static const char *boxVertex =
"attribute vec2 position;\n"
"attribute vec2 texcoord;\n"
"uniform vec2 offsetXY;\n"
"uniform vec2 sizeWH;\n"
"uniform vec2 texcrop;\n"
"uniform bool flipY;\n"
"varying vec2 Texcoord;\n"
"void main() {\n"
"Texcoord = texcoord * texcrop;\n"
"vec2 pos = offsetXY + position * sizeWH;\n"
"pos.x = pos.x * 2.0 - 1.0;\n"
"pos.y = pos.y * 2.0 - 1.0;\n"
"if (flipY)\n"
"pos.y *= -1.0;\n"
"gl_Position = vec4(pos, 0.0, 1.0);\n"
"}\n";
static const char *boxFragment =
"#ifdef GL_ES\n"
"#ifdef GL_FRAGMENT_PRECISION_HIGH\n"
"precision highp float;\n"
"#else\n"
"precision mediump float;\n"
"#endif\n"
"#endif\n"
"varying vec2 Texcoord;\n"
"uniform sampler2D tex;\n"
"void main() {\n"
"gl_FragColor = texture2D(tex, Texcoord);\n"
"}\n";
ShaderSurfaceRenderer::ShaderSurfaceRenderer() {
const GLfloat vertices[] = {
0.0, 0.0,
@ -182,7 +214,7 @@ ShaderSurfaceRenderer::ShaderSurfaceRenderer() {
// Setup the box shader used to render the overlay
const char *attributes[] = { "position", "texcoord", nullptr };
_boxShader = ShaderGL::fromStrings("box", BuiltinShaders::boxVertex, BuiltinShaders::boxFragment, attributes);
_boxShader = ShaderGL::fromStrings("box", boxVertex, boxFragment, attributes);
_boxVerticesVBO = ShaderGL::createBuffer(GL_ARRAY_BUFFER, sizeof(vertices), vertices);
_boxShader->enableVertexAttribute("position", _boxVerticesVBO, 2, GL_FLOAT, GL_TRUE, 2 * sizeof(float), 0);
_boxShader->enableVertexAttribute("texcoord", _boxVerticesVBO, 2, GL_FLOAT, GL_TRUE, 2 * sizeof(float), 0);