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authorDan Goodliffe <dan@randomdan.homeip.net>2022-11-23 17:53:32 +0000
committerDan Goodliffe <dan@randomdan.homeip.net>2022-11-23 18:38:46 +0000
commit5b415937c6c7097373bfd754b5699a9946c2cd16 (patch)
tree8f9978bdd0670b3f70c2775ad91bfaff46f873bf /gfx/gl
parentRename setView to setViewProjection to avoid ambiguity (diff)
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Support setting a viewPort uniform for those shaders which need it
Diffstat (limited to 'gfx/gl')
-rw-r--r--gfx/gl/sceneShader.cpp17
-rw-r--r--gfx/gl/sceneShader.h6
2 files changed, 22 insertions, 1 deletions
diff --git a/gfx/gl/sceneShader.cpp b/gfx/gl/sceneShader.cpp
index b20b1db..0b0c530 100644
--- a/gfx/gl/sceneShader.cpp
+++ b/gfx/gl/sceneShader.cpp
@@ -25,12 +25,29 @@ SceneShader::setViewProjection(const glm::mat4 & viewProjection) const
}
void
+SceneShader::setViewPort(const glm::ivec4 & viewPort) const
+{
+ for (const auto & prog : std::array<const SceneProgram *, 4> {&basic, &water, &landmass, &absolute}) {
+ prog->setViewPort(viewPort);
+ }
+}
+
+void
SceneShader::SceneProgram::setViewProjection(const glm::mat4 & viewProjection) const
{
glUseProgram(*this);
glUniformMatrix4fv(viewProjectionLoc, 1, GL_FALSE, glm::value_ptr(viewProjection));
}
+void
+SceneShader::SceneProgram::setViewPort(const glm::ivec4 & viewPort) const
+{
+ if (viewPortLoc >= 0) {
+ glUseProgram(*this);
+ glUniform4iv(viewPortLoc, 1, glm::value_ptr(viewPort));
+ }
+}
+
SceneShader::BasicProgram::BasicProgram() : SceneProgram {basicShader_vs, basicShader_fs}, modelLoc {*this, "model"} { }
void
diff --git a/gfx/gl/sceneShader.h b/gfx/gl/sceneShader.h
index 8094e0a..99431f1 100644
--- a/gfx/gl/sceneShader.h
+++ b/gfx/gl/sceneShader.h
@@ -8,14 +8,17 @@ class SceneShader {
class SceneProgram : public Program {
public:
template<typename... S>
- inline SceneProgram(const S &... srcs) : Program {srcs...}, viewProjectionLoc {*this, "viewProjection"}
+ inline SceneProgram(const S &... srcs) :
+ Program {srcs...}, viewProjectionLoc {*this, "viewProjection"}, viewPortLoc {*this, "viewPort"}
{
}
void setViewProjection(const glm::mat4 &) const;
+ void setViewPort(const glm::ivec4 &) const;
private:
RequiredUniformLocation viewProjectionLoc;
+ UniformLocation viewPortLoc;
};
class BasicProgram : public SceneProgram {
@@ -52,4 +55,5 @@ public:
AbsolutePosProgram landmass, absolute;
void setViewProjection(const glm::mat4 & viewProjection) const;
+ void setViewPort(const glm::ivec4 & viewPort) const;
};