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Diffstat (limited to 'render')
-rw-r--r--render/CMakeLists.txt2
-rw-r--r--render/renderer.c138
-rw-r--r--render/shader.c45
-rw-r--r--render/surface.c34
4 files changed, 195 insertions, 24 deletions
diff --git a/render/CMakeLists.txt b/render/CMakeLists.txt
index 597077ed..bd247d56 100644
--- a/render/CMakeLists.txt
+++ b/render/CMakeLists.txt
@@ -1,4 +1,6 @@
add_library(wlr-render STATIC
matrix.c
shader.c
+ surface.c
+ renderer.c
)
diff --git a/render/renderer.c b/render/renderer.c
new file mode 100644
index 00000000..174272a9
--- /dev/null
+++ b/render/renderer.c
@@ -0,0 +1,138 @@
+#include <stdint.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <GLES3/gl3.h>
+#include <wayland-util.h>
+#include <wayland-server-protocol.h>
+#include <wlr/render.h>
+#include <wlr/render/matrix.h>
+#include <common/log.h>
+#include "render.h"
+
+static struct wlr_shader *default_shader = NULL;
+
+static const GLchar vert_src[] =
+"uniform mat4 proj;\n"
+"attribute vec2 pos;\n"
+"attribute vec2 texcoord;\n"
+"varying vec2 v_texcoord;\n"
+"void main() {\n"
+" gl_Position = proj * vec4(pos, 0.0, 1.0);\n"
+" v_texcoord = texcoord;\n"
+"}\n";
+
+static const GLchar frag_src_RGB[] =
+"precision mediump float;\n"
+"varying vec2 v_texcoord;\n"
+"uniform sampler2D tex;\n"
+"void main() {\n"
+" gl_FragColor = vec4(texture2D(tex, v_texcoord).rgb, 1.0);\n"
+"}\n";
+
+static const GLchar frag_src_RGBA[] =
+"precision mediump float;\n"
+"varying vec2 v_texcoord;\n"
+"uniform sampler2D tex;\n"
+"void main() {\n"
+" gl_FragColor = texture2D(tex, v_texcoord);\n"
+"}\n";
+
+static void default_shader_init() {
+ if (default_shader) {
+ return;
+ }
+ default_shader = wlr_shader_init(vert_src);
+ if (!default_shader) {
+ goto error;
+ }
+ if (!wlr_shader_add_format(default_shader, GL_RGB, frag_src_RGB)) {
+ goto error;
+ }
+ if (!wlr_shader_add_format(default_shader, GL_RGBA, frag_src_RGBA)) {
+ goto error;
+ }
+ return;
+error:
+ wlr_shader_destroy(default_shader);
+ wlr_log(L_ERROR, "Failed to set up default shaders!");
+}
+
+static GLuint vao, vbo, ebo;
+
+static void default_quad_init() {
+ GLfloat verticies[] = {
+ 1, 1, 1, 1, // bottom right
+ 1, 0, 1, 0, // top right
+ 0, 0, 0, 0, // top left
+ 0, 1, 0, 1, // bottom left
+ };
+ GLuint indicies[] = {
+ 0, 1, 3,
+ 1, 2, 3,
+ };
+
+ glGenVertexArrays(1, &vao);
+ glGenBuffers(1, &vbo);
+
+ glBindVertexArray(vao);
+ glBindBuffer(GL_ARRAY_BUFFER, vbo);
+
+ glEnableVertexAttribArray(0);
+ glEnableVertexAttribArray(1);
+ glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof(GLfloat), (void *)0);
+ glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof(GLfloat), (void *)(2 * sizeof(GLfloat)));
+ glBufferData(GL_ARRAY_BUFFER, sizeof(verticies), verticies, GL_STATIC_DRAW);
+
+ glGenBuffers(1, &ebo);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo);
+ glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indicies), indicies, GL_STATIC_DRAW);
+}
+
+static void global_init() {
+ default_shader_init();
+ default_quad_init();
+}
+
+struct wlr_renderer *wlr_renderer_init() {
+ global_init();
+ struct wlr_renderer *r = calloc(sizeof(struct wlr_renderer), 1);
+ r->shader = default_shader;
+ return r;
+}
+
+void wlr_renderer_set_shader(struct wlr_renderer *renderer,
+ struct wlr_shader *shader) {
+ assert(renderer);
+ renderer->shader = shader;
+}
+
+bool wlr_render_quad(struct wlr_renderer *renderer,
+ struct wlr_surface *surf, float (*transform)[16],
+ float x, float y) {
+ assert(renderer && surf && renderer->shader && surf->valid);
+ wlr_shader_use(renderer->shader, surf->format);
+
+ glBindVertexArray(vao);
+ glBindBuffer(GL_ARRAY_BUFFER, vbo);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo);
+ glActiveTexture(GL_TEXTURE0 + 1);
+ glBindTexture(GL_TEXTURE_2D, surf->tex_id);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+ float world[16], final[16];
+ wlr_matrix_identity(&final);
+ wlr_matrix_translate(&world, x, y, 0);
+ wlr_matrix_mul(&final, &world, &final);
+ wlr_matrix_scale(&world, surf->width, surf->height, 1);
+ wlr_matrix_mul(&final, &world, &final);
+ wlr_matrix_mul(transform, &final, &final);
+ glUniformMatrix4fv(0, 1, GL_TRUE, final);
+
+ glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
+ return false;
+}
+
+void wlr_renderer_destroy(struct wlr_renderer *renderer) {
+ // TODO
+}
diff --git a/render/shader.c b/render/shader.c
index d7c10614..63797b8a 100644
--- a/render/shader.c
+++ b/render/shader.c
@@ -6,7 +6,6 @@
#include <GLES3/gl3.h>
#include <wlr/render.h>
#include <wlr/render/matrix.h>
-#include <wayland-util.h>
#include "render.h"
static bool create_shader(GLenum type, const GLchar *src, GLint len, GLuint *shader) {
@@ -44,6 +43,11 @@ bool wlr_shader_add_format(struct wlr_shader *shader, uint32_t format,
if (_shader->valid) {
shader = calloc(sizeof(struct wlr_shader), 1);
shader->vert = _shader->vert;
+ } else {
+ while (shader->next) {
+ _shader = shader;
+ shader = shader->next;
+ }
}
shader->format = format;
GLuint _frag;
@@ -55,11 +59,10 @@ bool wlr_shader_add_format(struct wlr_shader *shader, uint32_t format,
glAttachShader(shader->program, _frag);
glLinkProgram(shader->program);
glDeleteProgram(_frag);
- if (!_shader->valid) {
- _shader->valid = true;
- } else {
- wl_list_insert(&_shader->link, &shader->link);
+ if (_shader->valid) {
+ _shader->next = shader;
}
+ shader->valid = true;
return true;
error:
if (_shader->valid) {
@@ -69,32 +72,26 @@ error:
}
bool wlr_shader_use(struct wlr_shader *shader, uint32_t format) {
- struct wlr_shader *s = shader;
- if (s->format == format) {
- glUseProgram(s->program);
+ if (shader->format == format) {
+ glUseProgram(shader->program);
return true;
}
- if (shader->link.next) {
- wl_list_for_each(s, &shader->link, link) {
- if (s->format == format) {
- glUseProgram(s->program);
- return true;
- }
+ while (shader->next) {
+ shader = shader->next;
+ if (shader->format == format) {
+ glUseProgram(shader->program);
+ return true;
}
}
return false;
}
void wlr_shader_destroy(struct wlr_shader *shader) {
- if (!shader) {
- return;
- }
- glDeleteProgram(shader->vert);
- glDeleteProgram(shader->program);
- if (shader->link.next) {
- struct wlr_shader *next = wl_container_of(shader->link.next,
- next, link);
- wlr_shader_destroy(next);
+ while (shader) {
+ struct wlr_shader *_shader = shader;
+ glDeleteProgram(shader->vert);
+ glDeleteProgram(shader->program);
+ shader = shader->next;
+ free(_shader);
}
- free(shader);
}
diff --git a/render/surface.c b/render/surface.c
new file mode 100644
index 00000000..930e118d
--- /dev/null
+++ b/render/surface.c
@@ -0,0 +1,34 @@
+#include <stdint.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <GLES3/gl3.h>
+#include <wayland-util.h>
+#include <wayland-server-protocol.h>
+#include <wlr/render.h>
+#include <wlr/render/matrix.h>
+#include "render.h"
+
+struct wlr_surface *wlr_surface_init() {
+ return calloc(sizeof(struct wlr_surface), 1);
+}
+
+void wlr_surface_attach_pixels(struct wlr_surface *surf, uint32_t format,
+ int width, int height, const unsigned char *pixels) {
+ assert(surf);
+ surf->width = width;
+ surf->height = height;
+ surf->format = format;
+ // TODO: Error handling
+ glGenTextures(1, &surf->tex_id);
+ glBindTexture(GL_TEXTURE_2D, surf->tex_id);
+ glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0,
+ format, GL_UNSIGNED_BYTE, pixels);
+ surf->valid = true;
+}
+
+void wlr_surface_attach_shm(struct wlr_surface *surf, uint32_t format,
+ struct wl_shm_buffer *shm);
+
+void wlr_surface_destroy(struct wlr_surface *tex) {
+ // TODO
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 14:03:57 +0000